Math, asked by is0222128, 4 months ago

cos(a+b) * sin(a+b)

Answers

Answered by theintelligent99

2

Answer:

cosa*cosb-sina*sinb * sinacosb + cosasinb

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Answered by bsrinivasm

2

Answer:

cos²(a+b)

Step-by-step explanation:

cos(a+b)*sin(90-(a+b)

cos(a+b)*cos(a+b) cosA=sin(90-A)

cos²(a+b)

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