Math, asked by nikita75420, 10 months ago

1*3+4*7+9*13+16*21+25*31+........n terms​

Answers

Answered by Anonymous
1

use

a+(n-1)d=0 formula

u will get n term

Answered by kesava143
1

Step-by-step explanation:

use a+(n-1)d

to determine n terms of any Ap

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