Question

solve the following equation
-sin^2 x= 2cos x-2

Answer 1

is this

-sin^2(x) = 2cos(x) - 2

??

Answer 2

or

-sin^2(x) = 2cos(x-2)?

Answer 3

-sin^2(x) = 2cos(x) -2

Answer 4

can you move all terms to left hand side to get 0 on the right?

Answer 5

and then use the identity sin^2(x) = 1 - cos^2(x)

Answer 6

post what you get

Answer 7

1- cos^2(x)-2cos(x)-2=0
sorry for the late reply

Answer 8

@xotania_ np now can you write that as a square of 2 factors?, first combine the -2 and the +1

Answer 9

could you help me write that? the square of two roots