Question

Find out whether the given sequence is in A.P.: 12, 5, -2, -9 ……

Answer 1

Answer:

yes,the sequence is in A.P.

Step-by-step explanation:

A.P.:12,5,-2,-9.....

a=12;a2=5;a3=-2;a4=-9

a2-a1=5-12=-7

a3-a2=-2-5=-7

a4-a3=-9-(-2)=-9+2=-7

I hope this helps you.

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