The general solution of the equation `7cos^2theta+3sin^2theta=4` is `theta=2npi+-pi/6,\ n Z` b. `theta=2npi+-(2pi)/3,\ n Z` c. `theta=2npi+-pi/3,\ n Z` d. none of these

The general solution of the equation 7cos^(2)theta+3sin^(2)theta=4 is theta=2n pi+-(pi)/(6),nZ b.theta=2n pi+-(2 pi)/(3),nZ c.theta=2n pi+-(pi)/(3),nZ d.none of these

If A=[costheta-sinthetasinthetacostheta] , then A^T+A=I_2 , if theta=npi,\ \ n in Z (b) theta=(2n+1)pi/2,\ \ n in Z (c) theta=2n\ pi+pi/3,\ \ n in Z (d) none of these

If 4sin^2theta=1, then the values of theta are 2npi+-pi/3,\ n in Z b. npi+-pi/3,\ n in Z c. npi+-pi/6,\ n in Z d. 2npi+-pi/6,\ n in Z

If cottheta-t a ntheta=s e ctheta , then theta is equal to 2npi+(3pi)/2, n Z b. npi+(-1)^npi/6,\ n Z c. npi+pi/2, n Z d. none of these

If A=[cos theta-sin theta sin theta cos theta], then A^(T)+A=I_(2), if theta=n pi,n in Z(b)theta=(2n+1)(pi)/(2),quad n in Z(c)theta=2n pi+(pi)/(3),quad n in Z(d) none of these

One of the general solutions of sqrt(3)cos theta-3sin theta=4sin2 theta cos3 theta is m pi+(pi)/(18),m in Z(m pi)/(2)+(pi)/(6),AA m in Zm(pi)/(3)+(pi)/(18),m in Z none of these

If 4\ cos^2theta+sqrt(3)=2(sqrt(3)+1)costheta, then theta is 2npi+-pi/3, n in I (b) 2npi+-pi/4, n in I 2npi+-\ pi/6, n in I (d) none of these

One of the general solutions of sqrt(3) cos theta-3 sin theta=4 sin 2 theta cos 3 theta is mpi+pi/(18),m in Z (mpi)/2+pi/6,AAm in Z m pi/3+pi/(18),m in Z none of these

One of the general solutions of sqrt(3) cos theta-3 sin theta=4 sin 2 theta cos 3 theta is mpi+pi/(18),m in Z (mpi)/2+pi/6,AAm in Z m pi/3+pi/(18),m in Z none of these

One of the general solutions of sqrt(3) cos theta-3 sin theta=4 sin 2 theta cos 3 theta is mpi+pi/(18),m in Z (mpi)/2+pi/6,AAm in Z m pi/3+pi/(18),m in Z none of these