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 cos c theta+q cot theta=2 and p^(2)cos ec^(2)theta-q^(2)cot^(2)theta=5 then the value of sqrt(81p^(-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

Prove: cos e c^2theta+sec^2theta=cos e c^2thetasec^2theta

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

Prove: cos e c^6theta=cot^6theta+3cot^2thetacos e c^2theta+1

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 2tan^(-1)(costheta)=tan^(-1)(2cos e ctheta),(theta!=0) , then find the value of theta

What is the value of 9cot^2theta-9cos e c^2theta ?