Question

Trigonometry:
Find the range of values of x for which 3sin2》2cos2x

Answer 1

The sign there is more than and equal to..... :p

Answer 2

So how do you do it ? ^^'

Answer 3

is that 3sin2 or 3sin2x?

Answer 4

Its 3sin2x..sorry

Answer 5

in my opinion, it would be best to expand sin2x and cos2x first

Answer 6

\(\large 3sin^2(x) \ge 2cos^2(x)\) ?

Answer 7

but if it's that, then it's different

Answer 8

or \(\large 3sin(2x) \ge 3cos(2x)\) ?

Answer 9

Yes.thr one with ... 3sin(2x)