Дано: tgx=2/5 , tg(π/2+y)=−3 Определи: 1. tg(x+y)=? /? 2. tg(x−y)=?/?

Question

Дано:
tgx=2/5 , tg(π/2+y)=−3

Определи:

1. tg(x+y)=? /?


2. tg(x−y)=?/?

Answer 1

I hope this helps you

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