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# 6.5.1 double angle formulas

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### Transcript of "6.5.1 double angle formulas"

1. 1. Exact values with given information Establish Identities
2. 2.  sin 2 2sin cos  
3. 3. 3 5 2Given cos , 0       Find sin 2
4. 4.   2 2 cos 2 cos sin      2 cos 2 2cos 1     2 cos 2 1 2sin  
5. 5. 3 5 2Given cos , 0       Find cos 2
6. 6. 312 5 2Given tan ,        Find cos 2 Find sin 2
7. 7. 3 2Given cot , cos 0     Find cos 2 Find sin 2
8. 8.   2 2 sec sec 2 2 sec     
9. 9.   2 2tan tan 2 1 tan     
10. 10.   2 cot 1 cot 2 2cot     
11. 11. p. 490 # 1, 4 - 6, 7 - 13 odd (a,b), 36 - 40 even
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