Question

simplify the expression.
image below

Answer 1

I honestly don't know where to begin :|

Answer 2

tan ( sin^-1 x)
draw a right triangle
let hypotenuse = 1
let opposite = x so sin of angle opposite x is= x/1 = x
then third side is sqrt (1 - x^2)
so tan of our angle = opposite/adjacent = x/sqrt(1-x^2)
if you multiply top and bottom by sqrt(1-x^2) to get rid of the sqrt on the bottom you get
x sqrt (1-x^2) / (1-x^2)

Answer 3

thanks

Answer 4

You are welcome, good luck :)