Trig Proofs

These videos are from the Trigonometry Series. You can visit the page for these videos at this link: Trigonometric Proofs

Using the Reciprocal, Ratio, and Pythagorean Identities to verify a trig identity

Proving a trigonometric identity involving secant, cotangent, and tangent

Proving a trig identity involving sine and cosine

Proving a trig identity involving sine, cosine, and cotangent

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