Question

cos^2 x - 3 sin x = 3 where 0 11 years ago

Answer 1

@shamim

Answer 2

\(\Large Cos^2x=1-sin^2x\)

Answer 3

yes Jng nailed it

Answer 4

so you get a quadratic equation
sin^2 x + 3 sin x + 2 = 0
solve it to find values for sin x

Answer 5

ok

Answer 6

remember that sin x can only be between -1 and +1 , so one of the answers you'll have to discard

Answer 7

anyway sin x can not b equal to -2

Answer 8

thank you all so much!

Answer 9

w c