Mnemonic Device: SOH-CAH-TOA Explanation: pronounced “soak a toe-uh” SOH: Sine = Opposite leg divided by the Hypotenuse CAH: Cosine = Adjacent leg divided by the Hypotenuse TOA: Tangent = Opposite

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# Mnemonics for Trigonometry

Memory tools for sine, cosine and more...

## SOH-CAH-TOA

## Some People Have Curly Black Hair Thickly Plastered Back

Mnemonic Device: Some People Have Curly Black Hair Turning Purple Blue Some People Have Curly Black Hair Thickly Plastered Back Explanation: to remember trigonometric functions by first letters. Sine =

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## Some Old Hags Can’t Always Hide Their Old Age

Mnemonic Device: Some Old Hags Can’t Always Hide Their Old Age Explanation: to remember the three basic functions and their ratios in Trigonometry Sine = Opposite/Hypotenuse Cosine = Adjacent/Hypotenuse

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## CAST

Mnemonic Device: CAST Explanation: to remember the CAST Rule for trigonometric functions. Go counterclockwise, starting from the bottom right quadrant of graph axes. C is the area where the angle

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## All Saints Take Cocaine

Mnemonic Device: All Saints Take Cocaine Explanation: Trigonometric relation to recall that All functions are positive in the first quadrant, Sine is positive in the second, Tangent is positive

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## “Some Old Hippy Caught Another Hippy Tripping On Acid.”

Mnemonic Device: “Some Old Hippy Caught Another Hippy Tripping On Acid.” Explanation: to remember Sine, Cosine and Tangent, and their ratios, in Trigonometry Sine = Opposite/Hypotenuse Cosine = Adjacent/Hypotenuse Tangent

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## SCience Teacher, Very CRuel Man, (does nt give) Free Couching to Needy CouSINE…

Mnemonic Device: SCience Teacher, Very CRuel Man, (does nt give) Free Couching to Needy CouSINE… Explanation: This mnemonic device is to memorize the 1 transition series Additional Note: We are

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## Two Old Angels Skipped Over Heaven, Carrying Ancient Harps

Mnemonic Device: Two Old Angels Skipped Over Heaven, Carrying Ancient Harps Explanation: the equations for Tangent, Sine, and Cosine. O stands for opposite, A stands for adjacent, and H

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