Verify that the equation is an identity. 2 cos 2x -cotx-tan x sin 2x To verify the identity, start with either side and transform it to look like the other side. In this example, we will start with the right side. Choose the correct transformations and transform the expression at each step. cotx - tan x (Do not simplify.) Apply Pythagorean identities. Apply double-number identities. Apply even-odd identities. Apply quotient identities. 2 cos 2x sin 2x Verify that the equation is an identity. 2 cos 2x sin 2x = cot x-tan x To verify the identity, start with either side and transform it to look like the other side. In this example, we will start with the right side. Choose the correct transformations and transform the expression at each step. cotx- tanx (Do not simplify.) 2 cos 2x sin 2x Apply even-odd identities. Apply cofunction identities Write as one expression. Combine like terms. Use the definition of subtraction.