Question

15th term of the AP 21, 16, 11, 6 is​

Answer 1

HEYA MATE......!!!!!

HERE IS YOUR ANSWER.......

a = 21....

d= 16-21=-5....

a15= a+14d.....

21+ 14×-5....

21 - 70

= -49.....

HOPE IT HELPS.....

PLEASE MARK AS BRAINLIEST.....!!!!!

Answer 2

Answer:

-49

Step-by-step explanation:

a=21

a2=16

d=a2-a

d=16-21

d=-5

a15=a+(15-1)d

a15=21+(14)-5

a15=21-70

a15=-49