Question

Let x= 2sinx and simplify the expression (-pie / 2 < 0 < pie / 2)

Equation: x / square root of 4 - x^2

Answer 1

Are you sure x=2 sin x? What are we supposed to do with it? And what do you mean by "simplify the expression (-Pi/2 < 0 < Pi/2?

There are also ambiguities in the second line. What's the goal of this problem? Please try rewriting everything and make it as clear as you possibly can what your goals are.

Answer 2

says let x-2sin(Theta) and the range is (-pi/2 < Theta < -pi/2) The equation to solve is x/ square root of 4 - x^2

Answer 3

I'd really like to be more positive, Jordy, but still do not understand what you want to do in either problem. Please post one problem at a time.

Perhaps you meant "Let f(x) = x - 2 sin x. Graph this on [-pi/2,pi/2]. I don't know.

Note that the 2nd problem is not an equation, so you can't "solve it."

Back to the original problems, please, Jordy, and post only one problem at a time.

Answer 4

this is only one problem. the problem exactly says...
"Let x = sin theta, -pi/2 < theta < pi/2. Simplify the expression.
After which it gives the expression of
" x / square root of 4 - x^2