Go To Your Study Dashboard

Get Answers to all your Questions

header-bg

The value of $\ tan \frac{B}{2} \tan \frac{C}{2}$ if b+c = 2a, is
Option: 1
$\frac{1}{2}$

Option: 2
$\frac{1}{3}$

Option: 3
1

Option: 4
0

Answers (1)

best_answer

$\\\ tan \frac{B}{2} \tan \frac{C}{2}\\\\=\sqrt{\frac{(s-a)(s-c)}{s(s-b)}}\sqrt{\frac{(s-a)(s-b)}{s(s-c)}}\\ \\=\frac{s-a}{s}\\\\ =\frac{b+c-a}{a+b+c}\\ =\frac{1}{3}$

Posted by

Gaurav

View full answer

Similar Questions

0.1 M acetic acid solution having pH =3 is titrated against 0.05 M NaOH solution. Calculate pH at 1/4th stage of neutralization of acid.Option: 1

0.25×60+0.10x=0.15×(60+x)

Latest Question