Question

Done :)

Answer 1

I'm not sure where to begin.. factoring?

Answer 2

actually first make a quadratic equation

Answer 3

Please you have to write your equation, setting sin X=y, where y is a new variable, so you get an algebraic quadratic equation in y, the solve that equation for y

Answer 4

7 sin^ 2 x-14sin x + 2 = -5
7 sin^ 2 x-14sin x + 7 = 0
7 ( sin^2 x - 2 sin x + 1 ) = 0
7 ( sin x -1 ) ( sin x -1 ) = 0

Answer 5

now use zero product property:
if A*B = 0, then A = 0 or B = 0

Answer 6

namely sin x=1, twice!

Answer 7

How did you get sin x=1 twice? You solved using the zero product property? That's what I'm attempting to do now haha

Answer 8

Yes I have used the zero product property, your solutions are double because there are two identical factors (sin x-1)

Answer 9

Ooooh okay. All of the examples I have, have really complicated answers. I was trying to figure that out. Alright, thank you so much! I really appreciate it

Answer 10

Thank you!