Math, asked by mukherjeedipanshu, 10 months ago

tn=2n+13 is ap find sn

Answers

Answered by Anonymous

0

Step-by-step explanation:

no xjxbbcbcnfbbfnfbslqievzbzjebrvnw xndmdjdvdhgdjirurur iridwndyie USD f f

Answered by zenusdash

0

Step-by-step explanation:

t1=2*1+13=15

t2=2*2+13=17

a=15,d=2

sn=2*15+(n-1)*2

=(30+2n-2)1/2

=(28+2n)1/2

=2(14+n)1/2

=14+n

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