Find `dy/dx`
`x=a sec theta,y=b tan theta `

Find (dy)/(dx) when x = a sec theta and y = b tan theta

If x = a sec theta, y = b tan theta " then " (dy)/(dx) = ?

Find dy/dx x=a\ cos^3theta , y=a\ sin^3theta

The distance between the directrices of the hyperabola x=8 sec theta, y =8 tan theta is-

"Find "(dy)/(dx) if x =a(theta- sin theta) and y= a (1- cos theta).

If the chord through the points (a sec theta, b tan theta) and (a sec phi, b tan phi) on the hyperbola x^2/a^2 - y^2/b^2 = 1 passes through a focus, prove that tan (theta/2) tan (phi/2) + (e-1)/(e+1) = 0 .

Find (dy)/(dx) if x=cos theta - cos 2 theta and" "y = sin theta - sin 2theta

Find (dy)/(dx) when x = a cos theta and y = b sin theta

If a chord joining P(a sec theta, a tan theta), Q(a sec alpha, a tan alpha) on the hyperbola x^(2)-y^(2) =a^(2) is the normal at P, then tan alpha is (a) tan theta (4 sec^(2) theta+1) (b) tan theta (4 sec^(2) theta -1) (c) tan theta (2 sec^(2) theta -1) (d) tan theta (1-2 sec^(2) theta)

Find (dy)/(dx), when x=a e^(theta)(sintheta-costheta),y=a e^(theta)(sintheta+costheta)