" If "tan^(2)theta=2tan^(2)phi+1," then "cos2 theta+sin^(2)phi=

If tan^(2)theta=2tan^(2)phi+1, prove that cos2 theta+sin^(2)phi=0

Select and write the correct answer from the given alternatives in each of the following:If tan^2theta=2tan^2phi+1 ,then cos2 theta+sin^2phi =

If tan^(2)theta=1+2tan^(2)phi then show that cos2 theta+sin^(2)phi=0

If tan^2 theta=2 tan^2 phi+1 , show that cos 2 theta+ sin^2 phi=0 .

If t a n^2theta=2tan^2phi+1 , prove that cos2theta+sin^2phi=0.

If : cos^(2)theta-sin^(2)theta=tan^(2)phi, "then" : cos^(2)phi-sin^(2)phi=

If tan^(2)theta=2tan^(2)phi+1 then the value of cos(2theta)+sin^(2)phi is ………..

If" " tan^(2) theta = 1 + 2 tan^(2) phi, "show that", cos 2theta + sin^(2) phi = 0.