prove that, tan23°+tan22°+tan23°.tan22°=1

prove that, tan23°+tan22°+tan23°.tan22°=1
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4 Answers

??????????????? ".tan(23 deg)" ????????????
by

tan(45)=tan(23+22)

tan23+tan22=1

tan23.tan22

tan23+tan22=tan23.tan22

tan23+tan22-tan23.tan22=0

by
no site exept yours has posted ans/:     but it's also not proper
by
Tan 23+ tan 22 =1 (Tan 23+ tan 22)/(1-tan 23 tan 22)=1 Tan 23+ tan 22 = 1- tan 23 tan 22 Tan 23 + tan 22 + tan 23tan 22=1
by

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