Question

find tne sum of finite series 1+6+11+16........96​

Answer 1

Answer:

answer is 1060

Step-by-step explanation:

First here we will find out the value of n

An=a+(n-1)d

96=1+ (n-1)×5

95÷5 = n-1

19=n-1

n=20

now we will find the sum

Sn=n÷2 (2a+n-1d)

Sn =20÷2 (2+19×5)

Sn=10 (106)

Sn=1060

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