Precalc Ch 7. Important Formulas

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Precalculus Ch 7. Unit Circle & Other Important Formulas

Pre-Calculus

AP Precalculus

Unit 3: Trigonometric and Polar Functions

Last updated 11:00 PM on 2/27/25

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Arc Length Formula

s = rθ (in radians)

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Figuring out points on a circle (x,y)

( r cos θ, r sin θ )

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cos, sin & 1

cos² t+ sin² t= 1

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sec and tan conversion

1 + tan² t = sec² t

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cot and csc conversion

1 + cot²t = csc² t