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प्रश्न
Decide whether the given sequence 2, 4, 6, 8,… is an A.P.
उत्तर
Here, t1 = 2, t2 = 4, t3 = 6
∴ t2 − t1 = 4 − 2 = 2
t3 − t2 = 6 − 4 = 2
∴ t2 − t1 = t3 − t2 = ... = 2 = constant
The difference between two consecutive terms is constant.
∴ The given sequence is an A.P.
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