-1 -3 -5 -7... form an ap or not
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It is an form of an a.p.
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common difference
a2-a1
-3-(-1)
-3+1
-2
a3-a2
-5+(-3)
-5+3
-2
the common difference is same so it forms an AP
a2-a1
-3-(-1)
-3+1
-2
a3-a2
-5+(-3)
-5+3
-2
the common difference is same so it forms an AP
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