Question

cos 2x(2cosx+1)=0

Answer 1

want me to prove it?

Answer 2

..enter answer in comma-seperated list.. I guess?

Answer 3

i will just do the proving you do the rest okay?

Answer 4

or is this an equation to be solved?

Answer 5

cwrw238 - that is the same question im asking .. lol

Answer 6

okay.Yea solve the equation

Answer 7

help please..

Answer 8

sure

Answer 9

@cwrw238 i am not getting it ....

Answer 10

cos2x = 0
2cosx + 1 = 0

Answer 11

the question didnt state the range of x
so assume 0 =< x =< 360