Question

Simplify
sin(arccos(x/(x^2) + 1))

Answer 1

aye try mathway.com/ they should have the answer on there

Answer 2

\[\sin\left[\cos^{-1}\left(\frac{x}{x^2+1}\right)\right]~~?\]

Answer 3

yes

Answer 4

Okay. Suppose \(\theta=\cos^{-1}\left(\dfrac{x}{x^2+1}\right)\).

Then \(\cos\theta=\dfrac{x}{x^2+1}\), right?

Answer 5

ok

Answer 6

Consider a triangle that agrees with this:

Makes sense so far?