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# Maths-Trigonometry

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Trigonometry
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### Maths-Trigonometry

1. 1. TRIGONOMETRY
2. 2. sin(θ) = Opposite /Hypotenuse cos(θ) = Adjacent /Hypotenuse tan(θ) = Opposite /Adjacent
3. 3. In this triangle sinθ= AB/BC cosθ= AC/BC tanθ= AB/AC
4. 4. sec(θ) = Hypotenuse / Adjacent(=1/cos) cosec(θ) = Hypotenuse / Opposite(=1/sin) cot(θ) = Adjacent / Opposite(=1/tan)
5. 5. secθ=BC/AC cosecθ=BC/AB cotθ=AC/AB
6. 6. It is used in finding the distance between celestial bodies. Trigonometry is commonly used in finding the height of towers and mountains. Uses
7. 7. The sine and cosine functions are fundamental to the theory of periodic functions such as those that describe sound and light waves. It is used in navigation to find the distance of the shore from a point in the sea.
8. 8. = 1+tan2 45= sec2 45 L.H.S =1+ (12) tan45=1 =1+1 =2 R.H.S =(sqrt2)2 sec45=sqrt(2) =2 L.H.S = R.H.S=2 HENCE PROVED
9. 9. RAJAT GUPTA