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In any right triangle, the acute angles are complementary; that is, their sum is 90°. Use the trigonometric ratios to verify that the sine of an angle is equal to the cosine of …

In any right triangle, the acute angles are complementary; that is, their sum is 90°. Use the trigonometric ratios to verify that the sine of an angle is equal to the cosine of …
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In any right triangle, the acute angles are complementary; that is, their sum is 90°. Use the trigonometric ratios to verify that the sine of an angle is equal to the cosine of its complement.

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User Matthew Walk
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it can be proved in this way. hope this helps.
In any right triangle, the acute angles are complementary; that is, their sum is 90°. Use-example-1
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User Jeff Dallien
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