Verify the identity secx tan x 2 1 sin x sin x cos x cos x Do not simplify 1 sin x To verify the identity start with the more complicated side and transform it to look like the other side Choose the correct transformations and transform the expression at each step secx tan x 2 1 Simplify your answer Rewrite in terms of sine and cosine inside parentheses Combine and square Square each term inside the parentheses Apply a reciprocal identity Divide out the common factor