Math, asked by bheemrajsaklani, 10 months ago

cos x cos y - sin x sin y is

Answers

Answered by Anonymous

3

Answer:

it is a formula

Step-by-step explanation:

Cos(A+B)

cosA.cosB-sinA.sinB

Answered by sagarswain7064

1

cos x cos y - sin x sin y=cos(x+y)

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