1) Factorise: b²+1-12/b² 2) If, a³+b³+c³=3abc and a+b+c≠0 then prove a=b=c
plzz do it quickly. very very urgent.
Whoever first will answer correctly, I'll thank him and mark as the brainliest
plzz do it quickly. very very urgent.
Whoever first will answer correctly, I'll thank him and mark as the brainliest