If `(1+sint)(1+cost)=5/4` then find the value of `(1-sint)(1-cost)dot`

If (1+sint)(1+cost)=5/4dot Find the value (1-sint)(1-cos t)

If (1+sint)(1+cost)=5/4dot Find the value (1-sint)(1-cos t)

If x=a(cost+tsint) and y=a(sint-tcost) , then find the value of (dy)/(dx) .

If x=a(cost+tsint) and y=a(sint-tcost), then find the value of (d^2y)/(dx^2) at t=pi/4

Find dy/dx , If x=a(t-sint) , y=a(1+cost)

Find dy/dx , if x = 6(t-sint) , y= 4(1-cost)

For the variable triangle ABC with fixed vertex C(1,2) and A,B having coordinates (cost, sint),( sint,-cost) respectively,find the locus of its centroid.

Find dy/dx of the following x=a(t-sint) , y=a(1-cost)

If x=a(t-sint), y=a(1-cost) then find (d^2y)/(dx^2) .

If x=a(t-sint), y=a(1-cost) then find (d^2y)/(dx^2) .