Use a graphing calculator to make a conjecture as to whether each equation is an identity.
-$\cos 2 x = \sin 2 x \tan x$
A) Not an identity
B) Identity

Question

Quizplus · Accepted Answer

Using a graphing calculator to plot both sides of the equation $\cos 2x$ and $\sin 2x \tan x$ separately, one would observe that the two functions do not overlap completely for all values of $x$. This indicates that the equation is not an identity, as an identity holds true for all values within the domains of the functions involved.

Use a Graphing Calculator to Make a Conjecture as to Whether