If `xsintheta=ycostheta=(2ztantheta)/(1-tan^2theta),` then `4z^2(x^2+y^2)=`

If x sin theta = y cos theta = ( 2 z tan theta)/(1 - tan ^(2) theta) , then what is 4z ^(2) (x ^(2) + y ^(2)) equal to ?

If 2ycostheta=x sintheta and 2xsectheta-ycosectheta=3 , then x^(2)+4y^(2)=?

If xsintheta+ycostheta=sintheta.costheta and xsintheta-ycostheta=0 find x^(2)+y^(2)

If xsin^(3)theta+ycos^(3)theta=sinthetacostheta and xsintheta=ycostheta , then x^(2)+y^(2) is

If x=a(sec theta + tan theta)^(2) and y=b(sec theta- tan theta)^(4) , then x^(4)y^(2)=

If 9x/costheta+5y/sintheta=56 and 9xsintheta/cos^2theta-5ycostheta/sin^2theta=0 then value of [(9x)^(2/3)+(5y)^(2/3)]^3/784 is

If 9x/costheta+5y/sintheta=56 and 9xsintheta/cos^2theta-5ycostheta/sin^2theta=0 then value of [(9x)^(2/3)+(5y)^(2/3)]^3/784 is

If tan theta+tan2 theta+tan theta.tan2 theta=1 then theta=...(n in z)

If x= a ( sec theta + tan theta )^2 , y=b(sec theta - tan theta )^2 " then " x^(2) y^(2) =