If 13√25−3√5+1=A3√25+B3√5+C, then A + B + C=?
Simplified value of (25)13×513
(a) 25 (b) 3 (c) 1 (d) 5
If a+b+c=5 and ab+bc+ca=10, then prove that a^3 +b^3+c^3-3abc=-25
In ΔABC,if a=3,b=4,c=5,then sin 2B=