" If "(1+sin t)(1+cos t)=(5)/(4)," then the value of "(1-sin t)(1-cos t)" is "

If (1+sin t)(1+cos t)=(5)/(4) then find the value of (1-sin t)(1-cos t)

If (1+sin t)(1+cos t)=(5)/(4) Find the value of (1-sin t)(1-cos t)

x=a (t-sin t) , y =a (1-cos t)

If sin t+cos t=(1)/(5) then tan((t)/(2)) is equal to:

If x=a sin2t(1+cos2t) and y=b cos2t(1-cos2t), find the values of (dy)/(dx) at t=(pi)/(4) and t=(pi)/(3)

x=a(t-sin t),y=a(1+cos t) then (dy)/(dx) =

If x=2 cos t+cos 2t and y=2 sin t-sin2t , then the value of (dy)/(dx) at t=(pi)/(4) is -

The angle made by the tangent of the curve x=a(t+sin t cos t),y=a(1+sin t)^(2) with the x -axis at any point on it is (A) (1)/(4)(pi+2t) (B) (1-sin t)/(cos t)(C)(1)/(4)(2t-pi)(D)(1+sin t)/(cos2t)