Question

Write an A.P. whose first term is a and common difference is d in each of the following.
​

Answer 1

Step-by-step explanation:

a= -7

d= 1/2

an = a+(n-1) d

= -7+(n-1) 1/2

= -7 + 1/2n - 1/2

-13/2 +1/2n = 0

1/2n = 13/2

an = 13

PLEASE MARK THIS ANS AS BRAINILIST

Answer 2

Answer:

Given :

a = -7

d= 1/2

so,

a2= a+ d

= -7 + 1/2 = -13/2

a3= a2 + d

= -13/2 +1/2 = -12/2= -6

a4= a3 + d

= -6 + 1/2 = -11/2

Therefore, A. P. = -7, -13/2, -6, -11/2.....