Question

what are trigonometric ratios of some specific angles?

Answer 1

They are 6 in number...

Sin theta=perpendicular/hypo.
Cos theta=base/hypo.
Tan theta=perpendicular/base.
Cot theta=1/tan theta
Sec theta=1/cos theta
Cosec theta=1/sin theta...


Hope it helps..

Answer 2

let x be any acute angle , a be the height, b be the hypotenuse and c be the base of a right angle triangle.


then the trigonometric ratios are
1. sin x=a/b=height/hypotenuse
2. cosx=c/b=base/hypotenuse
3.tanx= sinx/cosx=a/c=height/base
4. cosecx=1/sinx=b/a=hypotenuse/height
5. secx =1/cosx=b/c=hypotenuse/base
6. cotx=1/tanx=c/a=base/height