Question

The nth term of a series in 4n + 1. Find the sum of its 1st n terms
and also the sum of its first hundred terms.
​

Answer 1

Answer:

no

Step-by-step explanation:

you should try your self I think you will surely get the answer

Answer 2

Answer:

n

th

 term of AP is (4n+1)

1

th

 term of AP is (4(1)+1)=5

2

th

 term of AP is (4(2)+1)=9

3

rd

 term of AP is (4(3)+1)=13

S

15

​

=

2

15

​

[2×5+(15−1)4]

=>

2

15

​

[10+56]=

2

15

​

×6=225

Step-by-step explanation: