" b."quad yquad ln theta=x" ,write value of "tan theta

If sec theta =x, " write the value of " tan theta.

If sec theta+tan theta=x, write the value of sec theta-tan theta in terms of x.

If cos theta=(7)/(25), " write the value of " (tan theta + cot theta).

If tan theta=(a)/(b) , find the value of (a sin theta-b cos theta)/(asin theta+b cos theta)

If sec theta+tan theta=x, obtain the values of sec theta,tan theta and sin theta

If x = a (cos theta + log tan(theta/2)) and y = a sin theta , find the value of (d^2y)/(dx^2) at theta = pi/4

If x=a sin theta and y = b cos theta , " write the value of " (b^(2)x^(2)+a^(2)y^(2)).

If x=a(costheta+log"tan"(theta)/(2)) and y=asin theta , then find the value of (dy)/(dx) at theta=(pi)/(4) .