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The third term of an ap …

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The third term of an ap of an ap is 7 and 17 term exceeds 3 time the third time by 2 to find the first term and the common difference and the sum of first n Peter please answer now
  • 1 answers

Aryan Tripathi 8 years, 2 months ago

A+ 2 D=7. eq 1 By questions, A+16 D=3 (A+2d) + 2 : 5d- a=2. Eq 2 By solving eq1 and eq2 we get, D= 9/7 and a= 31/7 Sum =n/2 {2a+ (n -1)d}
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