prove that `sinthetadotsec3theta+sin3theta,sec3^2theta+sin3^2thetadotsec3^3theta+ u p ton` terms `=1/2[tan3^ntheta-tantheta]`

prove that sintheta.sec3theta+sin3theta.sec3^2theta+sin3^2theta.sec3^3theta+ u p ton terms =1/2[tan3^ntheta-tantheta]

prove that sintheta.sec3theta+sin3theta.sec3^2theta+sin3^2theta.sec3^3theta+ u p ton terms =1/2[tan3^ntheta-tantheta]

prove that sintheta.sec3theta+sin3theta.sec3^2theta+sin3^2theta.sec3^3theta+ u p ton terms =1/2[tan3^ntheta-tantheta]

prove that sin theta*sec3 theta+sin3 theta,sec3^(2)theta+sin3^(2)theta*sec3^(3)theta+... upto n terms =(1)/(2)[tan3^(n)theta-tan theta]

Prove that: sectheta sec 2theta+sec2thetasec3theta+sec3theta.sec4theta+…to n terms = 1/(sintheta) [tan(n+1)theta-tantheta]

Prove that: sectheta sec 2theta+sec2thetasec3theta+sec3theta.sec4theta+…to n terms = 1/(sintheta) [tan(n+1)theta-tantheta]

Prove that sintheta+sin3theta+sin5theta+.....+sin(2n-1)theta=(sin^2ntheta)/(sintheta)dot

Prove that sintheta+sin3theta+sin5theta+.....+sin(2n-1)theta=(sin^2ntheta)/(sintheta)dot

Prove that sintheta+sin3theta+sin5theta+.....+sin(2n-1)theta=(sin^2ntheta)/(sintheta)dot

Prove that (sin theta+ sin 2theta + sin 3 theta)/(costheta+cos2theta+cos3theta)=tan 2 theta