tan^2x-sin^2x=tan^2xsin^2x | WyzAnt Resources

When trying to prove trig identities, it is often helpful to convert TAN functions into SIN/COS functions: Proof Step 1: Start with the original equation to prove: tan 2 x - sin 2 x = (tan 2 x)(sin 2 x) Proof Step 2: Replace tan with sin/cos (sin 2 x/cos

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