Question
If a>b>c>0 such taht
p_1 = \sqrt{(a+b)^2+c^2},
p_2= \sqrt{(a+c)^2+b^2},
p_3 =\sqrt{(b+c)^2+a^2},
Compare the size of p_1, p_2 and p_3
If a>b>c>0 such taht
p_1 = \sqrt{(a+b)^2+c^2},
p_2= \sqrt{(a+c)^2+b^2},
p_3 =\sqrt{(b+c)^2+a^2},
Compare the size of p_1, p_2 and p_3
\sqrt{(a+b)^2+c^2}
=\sqrt{a^2+b^2+c^2+2ab}
\sqrt{(a+c)^2+b^2}
\sqrt{(b+c)^2+a^2}
\therefore p_1>p_2>p_3