Indices

Σ11+xa-b+xa-c=?
(A) 1
(B)-1
(C) 0
(D) N.O.T.

3 Answers

1357
Manish Shankar ·

what are a, b and x

535
Aditya Agarwal ·

is there any other method apart from substituting x=0?

1357
Manish Shankar ·

ok got it

it can be written as

Σx-ax-a+x-b+x-c

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