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SOAL TRIGONOMETRI KELAS XI
oleh Muhamad Abdul Rosid
MATEMATIKANET.COM


1.   Nilai eksak dari cos 105 adalah ….
         ଵ
     A. ସ √2൫1 െ √3൯
        ଵ
     B. √2൫1 ൅ √3൯
       ସ
        ଵ
     C. ସ √2൫√3 െ 1൯
         ଵ
     D. ସ √2൫√3 ൅ 1൯
        ଵ
     E. ଶ √2൫1 െ √3൯


2.   Nilai dari cos 75 adalah ....
         ଵ         ଵ
     A. ସ √2 െ ସ √6
        ଵ
     B. ଶ √2

     C. 1
         ଵ         ଵ
     D. ସ √6 െ ସ √2
        ଵ          ଵ
     E. ସ √6 ൅ ସ √2


                                                            ସ             ଵଶ
3.   Jika ߙ dan ߚ merupakan sudut-sudut lancip dan sin ߙ ൌ ହ dan sin ߚ ൌ ଵଷ, nilai dari cosሺߙ ൅
     ߚሻ ൌ ‫.ڮ‬
              ଷଷ
     A. െ ଺ହ

     B. 0
        ଷଷ
     C. ଺ହ
         ଺ଷ
     D. ଺ହ

     E. 1


4.   Nilai dari cos 63 ‫ ڄ‬cos 87 െ sin 63 ‫ ڄ‬sin 87 ൌ ‫.ڮ‬
              ଵ
     A. െ ଶ √3
              ଵ
     B. െ ଶ


                                                                                                  1
C. 0
          ଵ
     D.
          ଶ
          ଵ
     E. √3
       ଶ



5.   Nilai eksak dari sin 105 adalah ….
          ଵ
     A. ସ √2൫1 െ √3൯
          ଵ
     B. ସ √2൫1 ൅ √3൯
          ଵ
     C. ସ √2൫√3 െ 1൯
          ଵ
     D. ସ √2൫√3 ൅ 1൯
          ଵ
     E. √2൫1 െ √3൯
       ଶ



6.   Nilai dari sin 75 adalah ….
          ଵ         ଵ
     A. ସ √2 െ ସ √6
          ଵ
     B. ଶ √2

     C. 1
          ଵ         ଵ
     D. ସ √6 െ ସ √2
          ଵ         ଵ
     E. ସ √6 ൅ ସ √2


                                                            ସ             ଵଶ
7.   Jika ߙ dan ߚ merupakan sudut-sudut lancip dan sin ߙ ൌ ହ dan sin ߚ ൌ ଵଷ, nilai dari sinሺߙ ൅
     ߚሻ ൌ ‫.ڮ‬
               ଷଷ
     A. െ ଺ହ

     B. 0
          ଷଷ
     C. ଺ହ
          ହ଺
     D. ଺ହ

     E. 1


8.   Nilai dari sin 63 ‫ ڄ‬cos 87 ൅ cos 63 ‫ ڄ‬sin 87 ൌ ‫.ڮ‬
               ଵ
     A. െ ଶ √3




                                                                                                  2
ଵ
     B. െ
               ଶ

     C. 0
          ଵ
     D.
          ଶ
          ଵ
     E. √3
       ଶ



9.   Nilai eksak dari cos 15 adalah ….
          ଵ
     A. ସ √2൫1 െ √3൯
          ଵ
     B. ସ √2൫1 ൅ √3൯
          ଵ
     C. ସ √2൫√3 െ 1൯
          ଵ
     D. √2൫√3 ൅ 1൯
       ସ
          ଵ
     E. ଶ √2൫1 െ √3൯


10. Nilai dari cosሺെ15ሻ adalah ….
          ଵ         ଵ
     A. ସ √2 െ ସ √6
          ଵ
     B. ଶ √2

     C. 1
          ଵ         ଵ
     D. ସ √6 െ ସ √2
          ଵ         ଵ
     E. ସ √6 ൅ ସ √2


                                                           ସ             ଵଶ
11. Jika ߙ dan ߚ merupakan sudut-sudut lancip dan sin ߙ ൌ ହ dan sin ߚ ൌ ଵଷ, nilai dari cosሺߙ െ
     ߚሻ ൌ ‫.ڮ‬
               ଷଷ
     A. െ ଺ହ

     B. 0
          ଷଷ
     C. ଺ହ
          ଺ଷ
     D. ଺ହ

     E. 1


12. Nilai dari cos 70 ‫ 52ݏ݋ܿ ڄ‬൅ ‫ 52݊݅ݏ ڄ 07݊݅ݏ‬ൌ ‫.ڮ‬




                                                                                                 3
ଵ
     A. െ √2
         ଶ
               ଵ
     B. െ ଶ

     C. 0
          ଵ
     D.
          ଶ
          ଵ
     E. ଶ √2


13. Nilai eksak dari ‫51݊݅ݏ‬adalah ....
          ଵ
     A. ସ √2൫1 െ √3൯
          ଵ
     B. ସ √2൫1 ൅ √3൯
          ଵ
     C. √2൫√3 െ 1൯
       ସ
          ଵ
     D. ସ √2൫√3 ൅ 1൯
          ଵ
     E. √2൫1 െ √3൯
       ଶ



14. Nilai dari ‫݊݅ݏ‬ሺെ15ሻ adalah ....
          ଵ         ଵ
     A. ସ √2 െ ସ √6
          ଵ
     B. ଶ √2

     C. 1
          ଵ         ଵ
     D. ସ √6 െ ସ √2
          ଵ         ଵ
     E. ସ √6 ൅ ସ √2


                                                        ସ            ଵଶ
15. Jika ߙdan ߚmerupakan sudut-sudut lancip dan ‫ ߙ݊݅ݏ‬ൌ ହ dan ‫ ߚ݊݅ݏ‬ൌ ଵଷ, nilai dari ‫݊݅ݏ‬ሺߙ െ
     ߚሻ ൌ ‫.ڮ‬
               ଷଷ
     A. െ ଺ହ
               ଵ଺
     B. െ ଺ହ

     C. 0
          ଷଷ
     D. ଺ହ
          ହ଺
     E. ଺ହ




                                                                                             4
16. Nilai dari ‫ 501݊ܽݐ‬adalah ....

     A. െ൫2 െ √3൯

     B. െ൫2 ൅ √3൯
     C. 1
        ଵ         ଵ
     D. √6 െ √2
       ସ    ସ

     E. 2 ൅ √3


                                                        ସ            ଵଶ
17. Jika ߙdan ߚmerupakan sudut-sudut lancip dan ‫ ߙ݊݅ݏ‬ൌ dan ‫ ߚ݊݅ݏ‬ൌ , nilai dari ‫݊ܽݐ‬ሺߙ ൅
                                                      ହ          ଵଷ
     ߚሻ ൌ ‫.ڮ‬
             ଷଷ
     A. െ ହ଺
             ହ଺
     B. െ
             ଷଷ
        ଷଷ
     C. ହ଺
        ହ଺
     D. ଷଷ

     E. 1


18. Nilai dari ‫ 51݊ܽݐ‬adalah ....

     A. െ൫2 െ √3൯

     B. െ൫2 ൅ √3൯
     C. 1
        ଵ         ଵ
     D. ସ √6 െ ସ √2

     E. 2 ൅ √3


                                                        ସ            ଵଶ
19. Jika ߙdan ߚmerupakan sudut-sudut lancip dan ‫ ߙ݊݅ݏ‬ൌ ହ dan ‫ ߚ݊݅ݏ‬ൌ ଵଷ, nilai dari ‫݊ܽݐ‬ሺߙ െ
     ߚሻ ൌ ‫.ڮ‬
             ଵ଺
     A. െ ଺ଷ
             ହ଺
     B. െ ଷଷ
        ଵ଺
     C. ଺ଷ
        ହ଺
     D. ଷଷ

     E. 1




                                                                                             5
ଷ
20. Jika ߙ merupakan sudut lancip dan ‫ ߙ݊݅ݏ‬ൌ , maka nilai dari ‫ ߙ2݊݅ݏ‬ൌ ‫.ڮ‬
                                            ହ
               ଶସ
     A. െ ଶହ
               ଻
     B. െ ଶହ
          ଻
     C.
          ଶହ
          ଶସ
     D. ଶହ
          ଶସ
     E.
          ଻



                                               ଷ
21. Jika ߙmerupakan sudut lancip dan ‫ ߙ݊݅ݏ‬ൌ , maka nilai dari ܿ‫ ߙ2ݏ݋‬ൌ ‫.ڮ‬
                                           ହ
               ଶସ
     A. െ ଶହ
               ଻
     B. െ ଶହ
          ଻
     C.
          ଶହ
          ଶସ
     D. ଶହ
          ଶସ
     E.   ଻



                                               ଷ
22. Jika ߙmerupakan sudut lancip dan ‫ ߙ݊݅ݏ‬ൌ ହ , maka nilai dari ‫ ߙ2݊ܽݐ‬ൌ. . ..
               ଶସ
     A. െ ଶହ
               ଻
     B. െ ଶହ
          ଻
     C. ଶହ
          ଶସ
     D. ଶହ
          ଶସ
     E.   ଻



                                                     ଵ             ଵ
23. Jika ߙdan ߚmerupakan sudut lancip dan ‫ ߙ݊ܽݐ‬ൌ ଶ dan ‫ ߚ݊ܽݐ‬ൌ ଷ, maka nilai dari ‫݊ܽݐ‬ሺߙ ൅
     2ߚሻ ൌ. . ..
     A. െ2
               ଽ
     B. െ ଵଷ
          ଽ
     C. ଵଷ

     D. 1



                                                                                           6
E. 2


                                                   ଵ         ଵ
24. Jika ߙdan ߚmerupakan sudut lancip dan ‫ ߙ݊ܽݐ‬ൌ dan ‫ ߚ݊ܽݐ‬ൌ , maka nilai dari ‫݊ܽݐ‬ሺ2ߙ െ
                                                ଶ          ଷ
     ߚሻ ൌ. . ..
     A. െ2
              ଽ
     B. െ ଵଷ
          ଽ
     C. ଵଷ

     D. 1
     E. 2


25. Jika ܿ‫ 051ݏ݋‬ൌ ‫݌‬maka nilai dari ‫ 57݊݅ݏ‬ൌ. . ..
                  ଵା௣
     A. െට         ଶ

               ଵି௣
     B. െට         ଶ

              ଵି௣
     C. ට
               ଶ

              ଵା௣
     D. ට
               ଶ

              ଵି௣
     E. ටଵା௣



26. Jika ܿ‫ 051ݏ݋‬ൌ ‫݌‬maka nilai dari ܿ‫ 57ݏ݋‬ൌ. . ..
                  ଵା௣
     A. െට         ଶ

               ଵି௣
     B. െට
                   ଶ

              ଵି௣
     C. ට
               ଶ

              ଵା௣
     D. ට      ଶ

              ଵି௣
     E. ටଵା௣



27. Jika ܿ‫ 051ݏ݋‬ൌ ‫݌‬maka nilai dari ‫ 57݊ܽݐ‬ൌ. . ..




                                                                                         7
ଵା௣
     A. െට
                    ଵି௣

                    ଵି௣
     B. െටଵା௣

            ଵି௣
     C. ට
                ଶ

            ଵା௣
     D. ටଵି௣

            ଵି௣
     E. ට
            ଵା௣




28. Nilai dari 4‫ 51ݏ݋ܿ54݊݅ݏ‬ൌ. …
     A. െ൫√3 ൅ 1൯
                ଵ
     B. െ ൫√3 െ 1൯
                ଶ
            ଵ             ଵ
     C. ቀ √3 െ ቁ
         ଶ    ଶ
            ଵ             ଵ
     D. ቀ √3 ൅ ቁ
         ଶ    ଶ

     E. √3 ൅ 1


29. Nilai dari 2ܿ‫ ܾ2݊݅ݏܽݏ݋‬ൌ. . ..
     A. ‫݊݅ݏ‬ሺܽ ൅ 2ܾሻ ൅ ‫݊݅ݏ‬ሺܽ െ 2ܾሻ
     B. ‫݊݅ݏ‬ሺܽ ൅ 2ܾሻ െ ‫݊݅ݏ‬ሺܽ െ 2ܾሻ
     C. ‫݊݅ݏ‬ሺܽ െ 2ܾሻ െ ‫݊݅ݏ‬ሺܽ ൅ 2ܾሻ
     D. ‫݊݅ݏ‬ሺܽ ൅ 2ܾሻ ൅ ܿ‫ݏ݋‬ሺܽ െ 2ܾሻ
     E. ‫݊݅ݏ‬ሺܽ ൅ 2ܾሻ െ ܿ‫ݏ݋‬ሺܽ െ 2ܾሻ


                              ଵ             ଵ
30. Jika ‫݊݅ݏ‬ሺߙ െ ߚሻ ൌ ଶ √3dan ‫ ߚݏ݋ܿߙ݊݅ݏ‬ൌ ଶmaka nilai dari ‫݊݅ݏ‬ሺߙ ൅ ߚሻ ൌ. . ..
        ଵ
     A. ସ √3
        ଵ           ଵ
     B. ଶ െ ଶ √3
        ଵ           ଵ
     C. ଶ ൅ ଶ √3
                    ଵ
     D. 1 െ ଶ √3
                    ଵ
     E. 1 ൅ ଶ √3




                                                                               8

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Soal trigonometri kelas-xi_ipa

  • 1. SOAL TRIGONOMETRI KELAS XI oleh Muhamad Abdul Rosid MATEMATIKANET.COM 1. Nilai eksak dari cos 105 adalah …. ଵ A. ସ √2൫1 െ √3൯ ଵ B. √2൫1 ൅ √3൯ ସ ଵ C. ସ √2൫√3 െ 1൯ ଵ D. ସ √2൫√3 ൅ 1൯ ଵ E. ଶ √2൫1 െ √3൯ 2. Nilai dari cos 75 adalah .... ଵ ଵ A. ସ √2 െ ସ √6 ଵ B. ଶ √2 C. 1 ଵ ଵ D. ସ √6 െ ସ √2 ଵ ଵ E. ସ √6 ൅ ସ √2 ସ ଵଶ 3. Jika ߙ dan ߚ merupakan sudut-sudut lancip dan sin ߙ ൌ ହ dan sin ߚ ൌ ଵଷ, nilai dari cosሺߙ ൅ ߚሻ ൌ ‫.ڮ‬ ଷଷ A. െ ଺ହ B. 0 ଷଷ C. ଺ହ ଺ଷ D. ଺ହ E. 1 4. Nilai dari cos 63 ‫ ڄ‬cos 87 െ sin 63 ‫ ڄ‬sin 87 ൌ ‫.ڮ‬ ଵ A. െ ଶ √3 ଵ B. െ ଶ 1
  • 2. C. 0 ଵ D. ଶ ଵ E. √3 ଶ 5. Nilai eksak dari sin 105 adalah …. ଵ A. ସ √2൫1 െ √3൯ ଵ B. ସ √2൫1 ൅ √3൯ ଵ C. ସ √2൫√3 െ 1൯ ଵ D. ସ √2൫√3 ൅ 1൯ ଵ E. √2൫1 െ √3൯ ଶ 6. Nilai dari sin 75 adalah …. ଵ ଵ A. ସ √2 െ ସ √6 ଵ B. ଶ √2 C. 1 ଵ ଵ D. ସ √6 െ ସ √2 ଵ ଵ E. ସ √6 ൅ ସ √2 ସ ଵଶ 7. Jika ߙ dan ߚ merupakan sudut-sudut lancip dan sin ߙ ൌ ହ dan sin ߚ ൌ ଵଷ, nilai dari sinሺߙ ൅ ߚሻ ൌ ‫.ڮ‬ ଷଷ A. െ ଺ହ B. 0 ଷଷ C. ଺ହ ହ଺ D. ଺ହ E. 1 8. Nilai dari sin 63 ‫ ڄ‬cos 87 ൅ cos 63 ‫ ڄ‬sin 87 ൌ ‫.ڮ‬ ଵ A. െ ଶ √3 2
  • 3. B. െ ଶ C. 0 ଵ D. ଶ ଵ E. √3 ଶ 9. Nilai eksak dari cos 15 adalah …. ଵ A. ସ √2൫1 െ √3൯ ଵ B. ସ √2൫1 ൅ √3൯ ଵ C. ସ √2൫√3 െ 1൯ ଵ D. √2൫√3 ൅ 1൯ ସ ଵ E. ଶ √2൫1 െ √3൯ 10. Nilai dari cosሺെ15ሻ adalah …. ଵ ଵ A. ସ √2 െ ସ √6 ଵ B. ଶ √2 C. 1 ଵ ଵ D. ସ √6 െ ସ √2 ଵ ଵ E. ସ √6 ൅ ସ √2 ସ ଵଶ 11. Jika ߙ dan ߚ merupakan sudut-sudut lancip dan sin ߙ ൌ ହ dan sin ߚ ൌ ଵଷ, nilai dari cosሺߙ െ ߚሻ ൌ ‫.ڮ‬ ଷଷ A. െ ଺ହ B. 0 ଷଷ C. ଺ହ ଺ଷ D. ଺ହ E. 1 12. Nilai dari cos 70 ‫ 52ݏ݋ܿ ڄ‬൅ ‫ 52݊݅ݏ ڄ 07݊݅ݏ‬ൌ ‫.ڮ‬ 3
  • 4. A. െ √2 ଶ ଵ B. െ ଶ C. 0 ଵ D. ଶ ଵ E. ଶ √2 13. Nilai eksak dari ‫51݊݅ݏ‬adalah .... ଵ A. ସ √2൫1 െ √3൯ ଵ B. ସ √2൫1 ൅ √3൯ ଵ C. √2൫√3 െ 1൯ ସ ଵ D. ସ √2൫√3 ൅ 1൯ ଵ E. √2൫1 െ √3൯ ଶ 14. Nilai dari ‫݊݅ݏ‬ሺെ15ሻ adalah .... ଵ ଵ A. ସ √2 െ ସ √6 ଵ B. ଶ √2 C. 1 ଵ ଵ D. ସ √6 െ ସ √2 ଵ ଵ E. ସ √6 ൅ ସ √2 ସ ଵଶ 15. Jika ߙdan ߚmerupakan sudut-sudut lancip dan ‫ ߙ݊݅ݏ‬ൌ ହ dan ‫ ߚ݊݅ݏ‬ൌ ଵଷ, nilai dari ‫݊݅ݏ‬ሺߙ െ ߚሻ ൌ ‫.ڮ‬ ଷଷ A. െ ଺ହ ଵ଺ B. െ ଺ହ C. 0 ଷଷ D. ଺ହ ହ଺ E. ଺ହ 4
  • 5. 16. Nilai dari ‫ 501݊ܽݐ‬adalah .... A. െ൫2 െ √3൯ B. െ൫2 ൅ √3൯ C. 1 ଵ ଵ D. √6 െ √2 ସ ସ E. 2 ൅ √3 ସ ଵଶ 17. Jika ߙdan ߚmerupakan sudut-sudut lancip dan ‫ ߙ݊݅ݏ‬ൌ dan ‫ ߚ݊݅ݏ‬ൌ , nilai dari ‫݊ܽݐ‬ሺߙ ൅ ହ ଵଷ ߚሻ ൌ ‫.ڮ‬ ଷଷ A. െ ହ଺ ହ଺ B. െ ଷଷ ଷଷ C. ହ଺ ହ଺ D. ଷଷ E. 1 18. Nilai dari ‫ 51݊ܽݐ‬adalah .... A. െ൫2 െ √3൯ B. െ൫2 ൅ √3൯ C. 1 ଵ ଵ D. ସ √6 െ ସ √2 E. 2 ൅ √3 ସ ଵଶ 19. Jika ߙdan ߚmerupakan sudut-sudut lancip dan ‫ ߙ݊݅ݏ‬ൌ ହ dan ‫ ߚ݊݅ݏ‬ൌ ଵଷ, nilai dari ‫݊ܽݐ‬ሺߙ െ ߚሻ ൌ ‫.ڮ‬ ଵ଺ A. െ ଺ଷ ହ଺ B. െ ଷଷ ଵ଺ C. ଺ଷ ହ଺ D. ଷଷ E. 1 5
  • 6. ଷ 20. Jika ߙ merupakan sudut lancip dan ‫ ߙ݊݅ݏ‬ൌ , maka nilai dari ‫ ߙ2݊݅ݏ‬ൌ ‫.ڮ‬ ହ ଶସ A. െ ଶହ ଻ B. െ ଶହ ଻ C. ଶହ ଶସ D. ଶହ ଶସ E. ଻ ଷ 21. Jika ߙmerupakan sudut lancip dan ‫ ߙ݊݅ݏ‬ൌ , maka nilai dari ܿ‫ ߙ2ݏ݋‬ൌ ‫.ڮ‬ ହ ଶସ A. െ ଶହ ଻ B. െ ଶହ ଻ C. ଶହ ଶସ D. ଶହ ଶସ E. ଻ ଷ 22. Jika ߙmerupakan sudut lancip dan ‫ ߙ݊݅ݏ‬ൌ ହ , maka nilai dari ‫ ߙ2݊ܽݐ‬ൌ. . .. ଶସ A. െ ଶହ ଻ B. െ ଶହ ଻ C. ଶହ ଶସ D. ଶହ ଶସ E. ଻ ଵ ଵ 23. Jika ߙdan ߚmerupakan sudut lancip dan ‫ ߙ݊ܽݐ‬ൌ ଶ dan ‫ ߚ݊ܽݐ‬ൌ ଷ, maka nilai dari ‫݊ܽݐ‬ሺߙ ൅ 2ߚሻ ൌ. . .. A. െ2 ଽ B. െ ଵଷ ଽ C. ଵଷ D. 1 6
  • 7. E. 2 ଵ ଵ 24. Jika ߙdan ߚmerupakan sudut lancip dan ‫ ߙ݊ܽݐ‬ൌ dan ‫ ߚ݊ܽݐ‬ൌ , maka nilai dari ‫݊ܽݐ‬ሺ2ߙ െ ଶ ଷ ߚሻ ൌ. . .. A. െ2 ଽ B. െ ଵଷ ଽ C. ଵଷ D. 1 E. 2 25. Jika ܿ‫ 051ݏ݋‬ൌ ‫݌‬maka nilai dari ‫ 57݊݅ݏ‬ൌ. . .. ଵା௣ A. െට ଶ ଵି௣ B. െට ଶ ଵି௣ C. ට ଶ ଵା௣ D. ට ଶ ଵି௣ E. ටଵା௣ 26. Jika ܿ‫ 051ݏ݋‬ൌ ‫݌‬maka nilai dari ܿ‫ 57ݏ݋‬ൌ. . .. ଵା௣ A. െට ଶ ଵି௣ B. െට ଶ ଵି௣ C. ට ଶ ଵା௣ D. ට ଶ ଵି௣ E. ටଵା௣ 27. Jika ܿ‫ 051ݏ݋‬ൌ ‫݌‬maka nilai dari ‫ 57݊ܽݐ‬ൌ. . .. 7
  • 8. ଵା௣ A. െට ଵି௣ ଵି௣ B. െටଵା௣ ଵି௣ C. ට ଶ ଵା௣ D. ටଵି௣ ଵି௣ E. ට ଵା௣ 28. Nilai dari 4‫ 51ݏ݋ܿ54݊݅ݏ‬ൌ. … A. െ൫√3 ൅ 1൯ ଵ B. െ ൫√3 െ 1൯ ଶ ଵ ଵ C. ቀ √3 െ ቁ ଶ ଶ ଵ ଵ D. ቀ √3 ൅ ቁ ଶ ଶ E. √3 ൅ 1 29. Nilai dari 2ܿ‫ ܾ2݊݅ݏܽݏ݋‬ൌ. . .. A. ‫݊݅ݏ‬ሺܽ ൅ 2ܾሻ ൅ ‫݊݅ݏ‬ሺܽ െ 2ܾሻ B. ‫݊݅ݏ‬ሺܽ ൅ 2ܾሻ െ ‫݊݅ݏ‬ሺܽ െ 2ܾሻ C. ‫݊݅ݏ‬ሺܽ െ 2ܾሻ െ ‫݊݅ݏ‬ሺܽ ൅ 2ܾሻ D. ‫݊݅ݏ‬ሺܽ ൅ 2ܾሻ ൅ ܿ‫ݏ݋‬ሺܽ െ 2ܾሻ E. ‫݊݅ݏ‬ሺܽ ൅ 2ܾሻ െ ܿ‫ݏ݋‬ሺܽ െ 2ܾሻ ଵ ଵ 30. Jika ‫݊݅ݏ‬ሺߙ െ ߚሻ ൌ ଶ √3dan ‫ ߚݏ݋ܿߙ݊݅ݏ‬ൌ ଶmaka nilai dari ‫݊݅ݏ‬ሺߙ ൅ ߚሻ ൌ. . .. ଵ A. ସ √3 ଵ ଵ B. ଶ െ ଶ √3 ଵ ଵ C. ଶ ൅ ଶ √3 ଵ D. 1 െ ଶ √3 ଵ E. 1 ൅ ଶ √3 8