if `tantheta=x/y` then `sin2theta+cos2theta` is

if tan theta=(x)/(y) then sin2 theta+cos2 theta is

Given that tantheta=a/b find sin2theta and cos2theta

If a tantheta=b , then a cos 2theta+b sin 2theta=

Inverse of the matrix A=[[cos2theta, -sin2theta], [sin2theta, cos2theta]] is

Assertion: sin2theta=(2tantheta)/(1+tan^2 theta) , Reason: sin^2 theta +cos^2 theta =1,sin2theta=2sinthetacostheta

If x sin^(3)theta+y cos^(3)theta=sin theta cos theta and x sin theta=y cos theta Find the value of x^(2)+y^(2)

If x sin^(3)theta+y cos^(3)theta=sin theta cos theta andx sin theta=y cos theta prove that x^(2)+y^(2)=1

Which of the following statements are always correct (where Q denotes the set of rationals)? (a)cos2theta in Q and sin2theta in Q rArr tantheta in Q (if defined), (b)tantheta in Q rArr sin2theta,cos2theta and tan2theta in Q (if defined) (c) if sintheta in Q and costheta in Q rArr tan3theta in Q (if defined) (d)if sintheta in Q rArr cos3theta in Q

Which of the following statements are always correct (where Q denotes the set of rationals)? (a) cos2theta in Q and sin2theta in Q rArr tantheta in Q (if defined), (b) tantheta in Q rArr sin2theta,cos2theta and tan2theta in Q (if defined) (c) if sintheta in Q and costheta in Q rArr tan3theta in Q (if defined) (d)if sintheta in Q rArr cos3theta in Q

Which of the following statements are always correct (where Q denotes the set of rationals)? (a) cos2theta in Q and sin2theta in Q rArr tantheta in Q (if defined), (b) tantheta in Q rArr sin2theta,cos2theta and tan2theta in Q (if defined) (c) if sintheta in Q and costheta in Q rArr tan3theta in Q (if defined) (d)if sintheta in Q rArr cos3theta in Q