Question

Heyy can anyone help me Solve all of these if u know even one of them please write it thankyou

Answer 1

Step-by-step explanation:

1)an=a+(n-1)d

4=4+(7-1)d

4=4+6d

6d=0

d=0

option a is correct.

2)In this series common difference is k+1

(4k+3)+(k+1)=5k+4

(5k+4)+(k+1)=6k+5

option a is correct.

3)option c is correct