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FinnZ [79.3K]
3 years ago
14

Prove the identity ​

Mathematics
1 answer:
olchik [2.2K]3 years ago
4 0

Sinx.cosy+cosx.siny-(sinx.cosy-cosxsinY)

Sinx.cosy+cosx.siny-sinx.cosy+cosxsiny

2cosx.siny

Rhs proved

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