Math, asked by hritiksoni358, 1 year ago

sum of the first n terms of an ap is n2+4n. find the 15th term of the progression.

Answers

Answered by vamsikrishna14052002
2

Answer:

we know that a+(n-1)d

Step-by-step explanation:

so,

1+2+3+4+..............(n-1)

a+(15-1)×1

common difference(d)=1

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