If `tan theta = 1`, then complete the following activity to find `cos theta`.

If tan theta = 1 , then sec theta = …….

If sec theta + tan theta = k, cos theta =

IF tan 2 theta . Tan theta = 1 then theta is

If sin theta = 7/25 then find cos theta and tan theta .

If tan theta = 1/b , then ( a sin theta - b cos theta )/( a sin theta + b cos theta) is

y = tan theta ( sin theta + cos theta) find (dy)/(d theta) .

Prove: (cos^2theta)/(1-tan theta) + (sin^3 theta)/(sin theta - cos theta ) = 1 + sin theta cos theta

theta_(1),theta_(2),theta_(3) are angles of 1^(st) quadrant if tan theta_(1) = cos theta_(1), tan theta_(2) = cosec theta_(2), cos theta_(3)=theta_(3) . Which of the following is not true ?