Math, asked by 8178858088, 11 months ago

prove that : ( cosx + cosy)square + ( sinx - sin y ) square = 4 cos square x+y /2

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Answered by dsr74703

0

ghjkgiojhhi jkhcguivxrtyuh

Answered by brunoconti

2

Answer:

Step-by-step explanation:

BRAINLIEST BRAINLIEST BRAINLIEST

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