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Find the trigonometric ratio for cos B may need to use Pythagorean theorem

Find the trigonometric ratio for cos B may need to use Pythagorean theorem-example-1

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Answer:

The answer is cos B = 2/3

I hope it will help you :)

Find the trigonometric ratio for cos B may need to use Pythagorean theorem-example-1
User Ricardo Gaefke
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