if `cos^2theta/a=sin^2theta/b` then `cos^4theta/a+sin^4theta/b=?`

sin^2theta+cos^4theta=cos^2theta+sin^4theta

if (cos^(2)theta)/(a)=(sin^(2)theta)/(b) then (cos^(4)theta)/(a)+(sin^(4)theta)/(b)=?

If cos theta =4/5 then sin^2 theta cos theta + cos^2 theta sin theta is equal to :

The value of (1-2 sin^2 theta cos^2 theta )/(sin^4 theta +cos^4 theta )-1 is: (1-2 sin^2 theta cos^2 theta )/(sin^4 theta +cos^4 theta )-1 का मान है :

If sin theta+sin^(2)theta=1, then cos^(2)theta+cos^(4)theta=-1(b)1(c)0(d) None of these

1-8 cos ^(2) theta + 8 cos ^(4) theta= A) sin 4 theta B) cos 4 theta C) sin ^(4) theta + cos ^(4) theta D) sin ^(4) theta - cos ^(4) theta

If cos theta=4/5 , then sin^2 theta cos theta+cos^2 theta sin theta is equal to : यदि cos theta=4/5 है,तो sin^2 theta cos theta+cos^2 theta sin theta का मान किसके बराबर होगा ?

The value of (2(sin^6 theta+cos^6 theta)-3(sin^4 theta+cos^4 theta))/ (cos^4 theta-sin^4 theta-2cos^2 theta) is (2(sin^6 theta+cos^6 theta)-3(sin^4 theta+cos^4 theta))/ (cos^4 theta-sin^4 theta-2cos^2 theta) का मान है:

Solve cos^(4)theta-sin^(4)theta=cos^2theta

If (sin theta+cos theta)/(sin theta-cos theta)=3 then sin^4 theta-cos^4 theta=