SOHCAHTOA
Students often use mnemonics to remember facts and relationships in trigonometry. For example, the sine, cosine, and tangent ratios in a right triangle can be remembered by representing them as strings of letters, as in SOH-CAH-TOA.
Sine = Opposite ÷ Hypotenuse
Cosine = Adjacent ÷ Hypotenuse
Tangent = Opposite ÷ Adjacent
Alternatively, one can devise sentences which consist of words beginning with the letters to be remembered. For example, to recall that Tan = Opposite/Adjacent, the letters T-O-A must be remembered. Any memorable phrase constructed of words beginning with the letters T-O-A will serve.
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Top SOHCAHTOA Video Tutorials
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Sine Cosine Tangent
2 minutes 18 seconds
cosine, curves, geometry, hypotenuse, plane figures, polygons, right triangles, shapes, sine, sohcahtoa, tangent, triangles, trigonometric functions, trigonometric identities, trigonometry
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Finding Trigonometric Values Using Sohcahtoa
3 minutes 45 seconds
sohcahtoa, trigonometric functions, trigonometric identities, trigonometry
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cosine, curves, geometry, hypotenuse, plane figures, polygons, right triangles, shapes, sine, sohcahtoa, tangent, triangles, trigonometric functions, trigonometric identities, trigonometry, .
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