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Using the law of cosines (c² = a² + b² - 2abcosC), solve for cosC. (Rewrite the equation so that you have cosC isolated on one side of the equation.)
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Using the law of cosines (c² = a² + b² - 2abcosC), solve for cosC. (Rewrite the equation so that you have cosC isolated on one side of the equation.)

User Bakabaka
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2 Answers

3 votes

Answer:

A on edge

Explanation:

User HorsePunchKid
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2 votes
a^2+b^2-c^2 over 2ab equals cosC
User Francisco Junior
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