Question

R Prove that
1 )
a+ b + c
a-1 b-1+b-1 c-1 +c-1 a-1
​

Answer 1

Answer:-

Consider,

a+b+c

–----------------------

a-¹ b-¹ + b-¹ c-¹ + c-¹ a-¹

= a+b+c

-----------------------------

1/ab+ a/abc + b/cab

[ multiply and divide each terms in the denominator by the missing terms. i.e., c,a,b respectively ]

a+b+c

= -------------------

c+a+b

-------------------

abc

= 1/1/abc

=abc

hence proved ........