Question

The first term of an ap is -54 and sixteenth term of is 21 find the 12th term

Answer 1

given that a= -54

and a16 = 21

a + (16-1)d = 21

-54 +15d=21

15d = 21+54=75

d= 75/15 = 5

we have to find a12

a12 = a+ (12-1)d

a12 = -54 + 11×5

a12 = -54+55 = 1

a12 = 1

Answer 2

Step-by-step explanation:

So, this is answer on upper