If sin(x)=9 how do you find x?

x = arcsin(9)

or

x = sin^-1(9)

EDIT: Well of course sin(x) cannot be greater than 1 or less than -1. So I'm assuming that he just made up an example of this situation without knowing that. But if he really wants to find x for sin(x) = 9, well of that is not possible. otherwise if you want to solve for x for sin(x) = a where -1<=a<=1.

If sin(x) = 9, you and John are living in a completely different universe than the rest of us. In our universe, sin(x) cannot be greater than 1 or less than -1. There is NO value of x that will make sin(x) = 9. At least not in the universe in which I live.

You'll never have a sine value larger than 1

You can't find x since sin can't equal anything greater than or less than 1.

sin x can never take any value <-1 and >1

So this does not have a solution.

sorry wrong question

Sin values will always be between. 1 to -1 only.

If sin(x)=9/10, how do you find x?

Here we have,

sin(x) = 9/10 = 0.9

x = Arcsin(0.9) = 64.158 degree ........................ ANSWER

Use website http://www.grc.nasa.gov/WWW/K-/airplane/sincos.htm... ~ this gives values of sine; cosine & tangents.