Question

show that the sequence whose nth term is an=4n+3 is an AP . find the ap and also find the sum of it's n th term​

Answer 1

Answer:

AP is : 7,11,15,...

Sum of N terms :

$2n ^{2} + 5n$

Step-by-step explanation:

Tn=4n+3

So,

T1=4(1)+3=7

Similarly we can find T1,T2,...

So AP is 7,11,15,...