$-8(1)=$______ , multiplicative identity property

Verify the identity in (23) by termwise differentiation.

Verify the given identity.

arcsin (-x) = -arcsin x

Is $\tan x=\frac{(\sec x)}{(\csc x)}$ an identity?

Use a graphing calculator to test whether each equation is an identity. If an equation appears to be an identity, verify it. If an equation does not appear to be an identity, find a value of x for which both sides are defined but are not equal.

$$\frac{\tan x}{\sin x - 2 \tan x} = \frac{1}{\cos x -2}$$

Describe the difference between an equation and an identity.

Prove the identity.

$$\sin (\pi-x)=\sin x$$

Is $\sin x=\frac{1}{\csc x}$ an identity?

Prove the identity.

$$\cosh x+\sinh x=e^x$$

Verify the identity.

$${ }_n C_n=1$$

Prove the identity.

$$\cosh x-\sinh x=e^{-x}$$

Verify the identity,.

$$\arccos (-x)=\pi-\arccos x$$

Verify the identity. $\sin$ x $\csc$(-x) = -1

Verify the identity.

$$\arccos (-x) = \pi-\arccos x$$