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Verify cos A + cos B = 2cos (A - B)/2 * cos (A - H)/2​
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Verify cos A + cos B = 2cos (A - B)/2 * cos (A - H)/2​

User Rayniery
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Answer:

no

Explanation:

Verify cos A + cos B = 2cos (A - B)/2 * cos (A - H)/2​-example-1
User Joegtp
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