which of the following sequences are a.p. if they are a.p. find the common difference
24,21,18,15
Answers
Answered by
0
Answer:
yes it is an a.p
difference
=
21 - 24 = -3
18 - 21 = -3
15 - 18 = -3
it is an a p. bcoz difference is common
Answered by
0
Answer:
3
Step-by-step explanation:
24-21=3
21-18=3
18-15=3
here,a1=15,an=24 and n=4
an=a1+(n-1)d
24=15+(4-1)d
9=3d
d=3
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