Math, asked by ishan6614, 7 months ago

cos(x-y)/cos(x+y)=Cotx.coty +1/Cotx.coty-1​

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Answered by snissarali
0

Answer:

i do not know the answer to

cos(x-y)/cos(x+y)=Cotx.coty +1/Cotx.coty-1​

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