x/(b-c) = y/(c-a) = z/(a-b) হলে, x + y + z = কত?

x/(b-c) = y/(c-a) = z/(a-b) হলে, x + y + z = কত?

A 1

B a +b+c

D ab + bc+ ca

Solution

Correct Answer: Option C

ধরি,

x/(b-c) = y/(c-a) = z/(a-b) = k

x = k(b-c)

y = k(c-a)

z = k(a-b)

x+y+z=k(b-c)+k(c-a)+k(a-b)

=k(b-c-c-a+a-b)

=kx0

=0