Question

if 7 sin square theta +3 cos square theta = 4, show that tan theta = 1/root 3

Answer 1

7 sin^2 a+3cos^2 a=. 4sin^2a+3 [3sin^2 a+3cos^2 a =3 ] 4 sin^2 a=4-3. sin^2 a=1/4. sina =1/2. a=30°. so tana=1/√3. Ans. mark as brainliest if you like the answer