If `tan theta=(sin alpha-cos alpha)/(sin alpha+cos alpha)`,then `theta` is

underset is If tan theta=(sin alpha-cos alpha)/(sin alpha+cos alpha), then sin alpha+cos alpha

If tan theta=(sin alpha-cos alpha)/(sin alpha+cos alpha), prove that 2cos^(2)theta=1+sin2 alpha

If tan theta=(sin alpha- cos alpha)/(sin alpha+cos alpha) , then sin alpha+cos alpha =.................... A) sqrt2 cos, theta sqrt2 sintheta B) -sqrt2 sin theta, -sqrt2 cos theta C) sqrt2 sin theta , sqrt2 sin theta D) sqrt2 cos theta , - sqrt2 cos theta

If" " tan theta = (sin alpha - cos alpha)/(sin alpha + cos alpha),"prove that",2 cos^(2) theta = 1 + sin 2 alpha.

IF tan alpha = ( sin alpha - cos alpha )/( sin alpha + cos alpha) , then sin alpha + cos alpha is

If tan theta=(cos alpha-sin alpha)/(cos alpha+sin alpha) and theta is acute then theta+alpha=

If (sin alpha-cosalpha)/(sin alpha+cosalpha)=tan theta , then prove that sin prop + cos prop = pm sqrt(2)cos theta.

If tan alpha=(sin theta-cos theta)/(sin theta+cos theta) then sin alpha

If sin theta+sin2theta+sin3theta=sin alpha and cos theta+cos 2theta+cos3theta=cos alpha , then theta is equal to ................. A) (alpha )/(2) B) alpha C) 2 alpha D) (alpha )/(6)

If tan theta = (Q sin alpha)/(P + Q cos alpha), "prove that", tan (alpha - theta) = (P sin alpha)/(Q + P cos alpha).