need help fr Dis ques.
Attachments:
Answers
Answered by
2
Answer:
Ans: 0
Step-by-step explanation:
Let x/b+c-a=y/c+a-b=z/a+b-c=k
then
x=(b+c-a)k
y=(c+a-b)k
z=(a+b-c)k
Then
(b-c)x+(c-a)y+(a-b)z
=(b-c)(b+c-a)k +(c-a) (c+a-b)k + (a-b)(a+b-c)k
=k[ b²-c²-a(b-c) +c²-a²-b(c-a)+a²-b²-c(a-b) ]
=k( b²-c²+c²-a²+a²-b²-ab+ca-bc+ab-ca+bc)
=k(0)
=0
Anonymous:
thanks dear friend
Similar questions