If a+b+c=3 and a>0,b>0,c>0, then the greatest value of a2b3c2 is
If a+b+c=0, then the value of (a+b−c)3+(b+c−a)3+(c+a−b)3 is:
If tan 2A = cot (A − 21°), where 2A is an acute angle, then ∠A = ? (a) 24° (b) 27° (c) 35° (d) 37°