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Mathematics, 02.12.2019 08:31 xrenay

How do i solve this trigonometry question:

sin(x+y)=cos(x-y)
tgx-tgy=1

solve soon!

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Answers: 3

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How do i solve this trigonometry question:

sin(x+y)=cos(x-y)
tgx-tgy=1

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