What is the sum of 1 + 1 + 1? 1 + x(b - a) + x(b - a) + x(b - a) + x( (c - a) 1 + x(a - b) + x(a - b) + x(a - b) + x( (c - b) 1 + x(b - + x(a - b) + x(a - b) + x( (a - c)
A. 0
B. 1
C. xa - b - c
D. None of these
Answer:B
What is the sum of 1 + 1 + 1? 1 + x(b - a) + x(b - a) + x(b - a) + x( (c - a) 1 + x(a - b) + x(a - b) + x(a - b) + x( (c - b) 1 + x(b - + x(a - b) + x(a - b) + x( (a - c)
A. 0 B. 1 C. xa - b - c D. None of these
Explanation: Given Exp. = 1/1 +xb/xa +xc/xa + 1/1 +xb/xa +xc/xa + 1/1 +xb/xa +xc/xa + 1/1 +xb/xa +xc/xa + 1/1 +xb/xa +xc/xa + 1/1 +xb/xa +xc/xa + 1/1 +xb/xa +xc= xa/(xa + xb + xc) + xb/(xa + xb + xc) + xc/(xa + xb + xc) + xc/(xa + xb + xc)= (xa + xb + xc)/(xa + xb + xc)/(xa + xb + xc)=equals 1.