Accountancy, asked by gjha942, 7 months ago

7/2+7+21/2+....upto 17 terms​

Answers

Answered by ROMANABHIREIGNS
2

Answer:

Sn = (n/2) [ 2a + (n - 1) d ]

S17 = (17/2) [ 7 + 16 x 7/2 ]

S17 = (17/2) [ 63 ] = 535½

KEEP SMILING .....

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