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

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

(sqrt2 - sin alpha - cos alpha )/( sin alpha - cos alpha)=

(sqrt2 - sin alpha - cos alpha )/( sin alpha - cos alpha)=

|(sin alpha, cos alpha),(cos alpha, -sin alpha)|=

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

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