Answers

2016-02-03T14:17:32+05:30
A+B+C=180

A+B=180-C
Tan(A+B)=-TanC

(TanA+TanB)/(1-TanATanB)=-TanC

TanA+TanB+TanC=TanATanBTanC=6
TanC=3. so the angle C is acute.

TanA+TanB=3

TanA-TanB=1
therefore TanA=2 and TanB=1

A and B are also 
acute

So this triangle is acute triangle.
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plz mark as d bst.
Tq very much pls ans another question if possible
Why will it become acute if tan C =3?
Say fast pls