If `sintheta-costheta=1/2`, then `sin2theta=?`

If sintheta+costheta=1/2 then find the value of 16(sin2theta+cos4theta+sin6theta)

If sintheta-costheta=1 , then the value of sin^3theta-cos^3theta is __________ .

If sintheta+costheta=1 , then the value of sin2theta is

If sintheta +costheta =1 , then the value of sin2theta is equal to

If x=2costheta-cos2theta,y=2sintheta-sin2theta,"find "dy/dx" at "theta=pi/2 .

If sintheta + cos theta =1 , then the value of sintheta - costheta is:

Find (dy)/(dx) , if x=costheta-cos2theta , y=sintheta-sin2theta

If sin theta - cos theta =1/29 find the value of sintheta + costheta .

If (sintheta+costheta)/(sintheta-costheta)=3 , then find the value of sin^(4)theta-cos^(4)theta .

costheta[{:(costheta,-sin theta),(sintheta,costheta):}]+sintheta[{:(sintheta,costheta),(-costheta,sintheta):}]=?