Math, asked by mkpadla1977, 10 months ago

The sum of first n terms of an A.P. is 3n2 + 4n. Find the 25th term of thisAP
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Answers

Answered by Anonymous

3

Answer:

We

Step-by-step explanation:we have ,

Sn=3n^2 +4n and S1=3+4=7

Therefore S25=3×(25)^2+4×25=1975

Therefore first term 7

Now

S25=1975

25/2×(7+L) =1975

7+L=158

There fore last term = 151

Answered by MohitNariyani

0

Answer:

25th term = 151

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Step-by-step explanation:

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