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CBSE Class 9 Answered

Q.12
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Asked by 1784393325200864 | 05 Mar, 2018, 05:29: PM
answered-by-expert Expert Answer
begin mathsize 16px style
sum for blank of straight f subscript straight i left parenthesis straight x subscript straight i minus straight x with bar on top right parenthesis
sum for blank of straight f subscript straight i straight x subscript straight i minus sum for blank of straight f subscript straight i straight x with bar on top............1
now comma space space begin inline style straight x with bar on top end style begin inline style equals end style fraction numerator begin display style sum for blank of end style straight f subscript straight i straight x subscript straight i over denominator begin display style sum for blank of end style straight f subscript straight i end fraction
sum for blank of straight f subscript straight i space begin inline style straight x with bar on top end style begin inline style equals end style sum for blank of straight f subscript straight i straight x subscript straight i...........2
so space from space 1 space and space 2 space ans space is space zero begin inline style space end style end style
Answered by Arun | 05 Mar, 2018, 06:20: PM
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