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Per NCERT Class 9 Math, what is an ARITHMETIC PROGRESSION (AP)?
AAny sequence whatsoever
BA sequence in which each term differs from the previous term by a CONSTANT amount (the common difference)
CA sequence of prime numbers
DA sequence with a constant ratio between consecutive terms
Answer & Solution
Correct answer: B. A sequence in which each term differs from the previous term by a CONSTANT amount (the common difference)
Per NCERT §8.4, an AP has a constant common difference between consecutive terms. GP has constant common ratio.
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