Math, asked by 10vaibhavgawai10, 9 months ago

If the sum of the series 2+5+8+11+……is 5430, then the number of terms are *

Answers

Answered by Anonymous

Step-by-step explanation:

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Sum is Terms are infinite ✌

Answered by agarwaldhruv284

Step-by-step explanation:

a=2

s=5430

d=a2-a1=5-2=3

s=n/2(2a+(n-1)×d)

5430=n/2(2×2+(n-1)×3)

5430=n/2(4+3n-3)

5430=n/2(1+3n)

5430=n/2+3n^2/2

n+3n^2/2-5430

3n^2+n-10860/2

factorise it to get the answer

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