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I don’t know what to do please help

I don’t know what to do please help
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I don’t know what to do please help

I don’t know what to do please help-example-1
User Alanc
by
8.2k points

1 Answer

5 votes

Answer:

cos(A)=√21/5

Explanation:

Use the definition of each function as well as the Pythagorean Theorem.

Hope it helps :>

User Orwell
by
8.1k points
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