If `Sin(theta) + Cos( theta )` = 1.4 , then find `Sin(theta) - Cos( theta )`

If sin^(4) theta+cos^(4)theta=(1)/(2) , then find sin theta cos theta .

If 3 sin theta + 4 cos theta=5 , then find the value of 4 sin theta-3 cos theta .

If (cos theta)/(1- sin theta) + (cos theta)/(1 + sin theta) =4 , then find the value of cos theta . Find theta if 0^(@) lt theta lt 90^(@)

If (sin theta + cos theta)/(sin theta - cos theta)=3 , then the value of sin^(4)theta - cos^(4)theta is:

(1 + cos theta + sin theta) / (1 + cos theta-sin theta) = (1 + sin theta) / (cos theta)

1- (sin ^ (2) theta) / (1 + cos theta) + (1 + cos theta) / (sin theta) - (sin theta) / (1-cos theta) - (1) / (sec theta)

4 sin theta * cos^(3) theta-4 cos theta * sin ^(3)theta= A) 4 cos theta B) cos 4 theta C) 4 sin theta D) sin 4 theta

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