Math, asked by PunitM, 5 months ago

Prove that:

Cos(π÷4-x)cos(π÷4-y)-sin(π÷4-x)sin(π÷4-y)=sin(x+y)

Answers

Answered by AmanRatan

1

Answer:cos(π÷4-y)-sin(π÷4-x)sin(

Step-by-step explanation:it is a right answer bro follow

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