Let a;b;c\(\in\)R such that a\(\ne\)b\(\\ \ne\)c . Prove that;
\(\dfrac{a^2}{\left(b-c\right)^2}+\dfrac{b^2}{\left(c-a\right)^2}+\dfrac{c^2}{\left(a-b\right)^2}\ge2\)
The number A is 3 more than twice another number B . Their sum is 27 . Find the number A