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18 January, 13:38

Two sides of a right triangle ABC (C is the right angle) are given. Find the indicated trigonometric function of the given angle. Give exact answers with rational denominators.

Find sin A when a = 4 and b = 5.

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  1. 18 January, 16:48
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    5 root 41/41

    draw a right triangle. label the sides. use the Pythagorean theorem. do sin of the angle A. rationalize denominator.
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