If `pcos e ctheta+qcottheta=2` and `p^2cos e c^2theta-q^2cot^2theta=5` then the value of `sqrt(81 p^(-2)-q^(-2))` is________

If p sec theta+q tan theta=1 and p^(2)sec^(2)theta-q^(2)tan^(2)theta=5 then find the value of (9p^(-2)-4q^(-2))

If ^( If )=1-q tan theta and p^(2)sec^(2)theta=5+q^(2)tan^(2)thetap sec theta=1-q tan theta and p^(2)sec^(2)theta=5+q^(2)tan^(2)theta then the value of (9)/(p^(2))-(4)/(q^(2)) equals to

If qcosectheta=p and theta is acute then value of (sqrt(p^(2)-q^(2)))tan theta is

If sin theta=p and cos theta=q then the value of (p-2p^(3))/(2q^(3)-q) is

If x =p cosec theta and y =q cot theta , then the value of (x^2)/(p^2)- (y^2)/(q^2) is

If cos ec theta+cot theta=p, then prove that cos theta=(p^(2)-1)/(p^(2)+1)

If p sin theta-qcostheta=0 evalute : pcos2theta+qsin2theta.

p=4sec^(2)theta+cos^(2)theta and q-cos ec^(2)phi+4sin^(2)theta phi then find the minimum value of (p+q)

if sin theta+cos theta=p and sin^(3)theta+cos^(3)theta=q, then p(p^(2)-3)