How would I find all the solutions to the equation "7sin^2x-14sinx+2=-5"?

Question

asked May 13, 2021 147k views

1 Answer

PriorityMark · Answer 1 · 2021-05-19T06:58:28+0000

Answer:

Explanation:

Find all solutions to the equation.

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

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

sin^2(x)-2sin x+1 =0

(sinx-1)(sinx-1)=0

sinx=1

x=π/2+2pi*k, k=integer