Math, asked by anuroy4284, 1 year ago

Find the first sum of first 50 terms in the series 5+3-7+5+3-7

Answers

Answered by cxsmtp

7

When we write 50 terms we will write 16 blocks of 5+3-7

so:

= 16(5+3-7)+5+3

= 16+ 8

=24

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