If `sintheta+costheta=x` , then `(4-3(x^2-1)^2)/4=`

If sintheta+costheta=x , Prove that : sin^6theta+cos^6theta=(4-3(x^2-1)^2)/4

If x= a(costheta + sintheta), y= a(sintheta + costheta) , then (d^2y)/(dx^2) at theta = pi/4 .............

If a costheta + b sintheta=3 and a sintheta - b costheta=4 , then a^(2)+b^(2) has the value 25

If a costheta + b sintheta=3 and a sintheta - b costheta=4 , then a^(2)+b^(2) has the value 25

If x = a(sintheta + costheta) and y = b (sintheta- costheta) then (x^2 //a^2 ) + (y^2 //b^2) =? (a)3 (b)1 (c)4 (d)2

If 3sintheta+4costheta=5 ,then 4sintheta-3costheta=

If sintheta+costheta=x , then show that: sin^(6)theta+cos^(6)theta=1-3/4(x^(2)-1)^(2)

If sintheta+costheta=x , then show that: sin^(6)theta+cos^(6)theta=1-3/4(x^(2)-1)^(2)

If sintheta+costheta=x then sintheta-costheta=?

If x = (2sintheta)/(1+costheta+sintheta), then (1-costheta+sintheta)/(1+sintheta) is equal to