Question

Find the period of \[f(x)) = 4 sin^2x + 7 cos^2 x\]

Answer 1

My guess is \(\pi\).

Answer 2

Yup...@Ishaan94 u r correct

Answer 3

Can u ....Solve this....@Ishaan94

Answer 4

Period of \(b\sin^2x + a\cos^2x\) is same as \(c\sin^2x\). Use \(\sin^2\theta + \cos^2\theta = 1\).

Answer 5

Did nt get u @Ishaan94

Answer 6

\[4\sin^2x + 7\cos^2x = 4 - 11 \cos^2x\]
Since \(\cos ^2x\)'s period \(\pi\), \(4 - 11 \cos^2x\) would \(\pi\) as well.

Answer 7

... would be* ...

Answer 8

Yes...thxxxx