Question

The first term of an AP is-7 d=5.Find 18th term

Answer 1

Answer:

78

Step-by-step explanation:

a18=a+(n-1)d

a18=-7+(18-1)(5)

a18=-7+85

a18=78

Answer 2

Step-by-step explanation:

First term(a) = -7. d= 5.

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

a(18) = a+17d

a(18) = -7 + 17 (5)

a(18) = -7 + 85

a(18) = 78

hope it helps. . .........✌✌