Eight Fundamental Trigonometric Identities

Year Published: 1959

Format: 16mm

Sound: sound

Description: Uses the Pythagorean theorem to develop three identities involving squares of simple trigonometric functions. Shows how to use the identities and the ratios for tangent and cotangent in terms of sine and cosine, and the reciprocals of cosecant, secant and cotangent to simplify complex relationships.

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