Question

Find all solutions to the equation. 7 sin2x - 14 sin x + 2 = -5

Answer 1

@sourwing @satellite73 @shamil98

Answer 2

\[7x^2-14x+7=0\\
x^2-2x+1=0\\
(x-1)^2=0\\
x=1\]

Answer 3

so in your case
\[\sin(x)=1\]

Answer 4

Is that it? @satellite73

Answer 5

what is what?

Answer 6

I'm trying to do trigonometric equations. Is pi involved here?

Answer 7

do you know a number \(\theta\) with \(\sin(\theta)=1\)? there are infinite such numbers

Answer 8

Im confused. I know that symbol is theta

Answer 9

forget the symbol
solve for \(x\)

\[\sin(x)=1\]

Answer 10

x=1?

Answer 11

Im lost :(