Solve `7cos^2theta+3sin^2theta=4`

Solve 7cos^(2)theta+3sin^(2)theta=4 .

solve 7cos^(2)theta+3sin^(2)theta=4

Solve 7cos^(2)theta+3sin^(2)theta=4

Solve 7 cos^2 theta+3 sin^2 theta=4

Solve: 7cos^(2)theta+3sin^(2)theta=4

Solve 2cos^(2)theta + 3sin theta=0

solve : 2cos^2theta+4sin^2theta=3

Solve 5cos^(2)theta+7sin^(2)theta=6

Solve the following equations: i) 3(tan^(2)theta+sec^(2)theta)=5 ii) tan^(2)theta+cot^(2)theta=2 iii) 7cos^(2)theta+3sin^(2)theta=4