SOHCAHTOA is a very useful mnemonic that can help students remember the sine ratio, cosine ratio, and the tangent ratio of the three basic trigonometric functions sine, cosine, and tangent.
SOH : Sine = Opposite / Hypotenuse
CAH : Cosine = Adjacent / Hypotenuse
TOA : Tangent = Opposite / Adjacent
Below, we show a nice figure that will help you greatly to remember sohcahtoa.
Opposite means opposite to the angle θ and adjacent means adjacent or next to the angle θ.
You could also use the following mnemonic to remember the trigonometric ratios.
" Some Old Hog Came Around Here and Took Our Apples."
Sin(θ) = 6/10 = 0.6
Cos(θ) = 8/10 = 0.8
Tan(θ) = 6/8 = 0.75
Jan 20, 20 05:26 PM
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