find the sum of first 24terms of AP 5,8,11,14
Answers
Answered by
2
a=5 d=3 n=24
sn = n/2(2a+(n-1)d)
put this value
sn = n/2(2a+(n-1)d)
put this value
Answered by
1
sum of ap formula=n/2(a+Tn)
Tn = a+(n-1)d
=>Tn = 5+(24-1)3
= 74
sum = 24 /2(5+74)
=948
n=no . of terms in AP
Tn=nth term of an AP
a=first term
d=common difference
Tn = a+(n-1)d
=>Tn = 5+(24-1)3
= 74
sum = 24 /2(5+74)
=948
n=no . of terms in AP
Tn=nth term of an AP
a=first term
d=common difference
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