If `x=asec^(3)theta " and " y=atan^(3)theta " find " (dy)/(dx) " at " theta=pi/3`.

If x = a cos^(3)(Theta), y = a sin^(3)(Theta) find (d^(2)y)/(dx^(2)) .

If x=acos^3theta,y=bsin^3theta, f i n d (d^3y)/(dx^3) at theta=0.

If x = a sin^(3)(Theta) y=a cos^(3)(Theta) find dy/dx .

If x=a(theta+sintheta), y=a(1+costheta) " then " (dy)/(dx) is

If x = a sec(Theta) y=b tan(Theta) find dy/dx .

x = a(costheta + logtan(theta/2), y = asintheta, find dy/dx.

If x=atan theta and y=b sec theta then

If f( theta ) = sin ^(3)theta + sin ^(3)( theta + (2pi)/(3)) + sin ^(3)( theta + (4pi)/(3)) then the value of f((pi)/(18)) + f((7pi)/(18)) is ___________.

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