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Sequence Formula

Class 9 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsIf (a_n=2n^3-n), what is the value of (a_4-a_2)?Class 9Sequences and Progressionsnth termExpert MathematicsIn an arithmetic sequence, a₄ = 21 and a₁₀ = 57. What is its nth term?Class 9Sequences and ProgressionsArithmetic ProgressionHard MathematicsIf the (n)th term of a sequence is (a_n=5n-7), what will be the (20)th term?Class 9Sequences and Progressionsnth termExpert MathematicsIn an arithmetic sequence, a₈ = 41 and the common difference is 5. What is its nth term?Class 9Sequences and Progressionsnth termMedium MathematicsIf the (n)th term of an arithmetic sequence is (a_n=6n-1), what is (a_{15})?Class 9Sequences and Progressionsnth termHard MathematicsIf \(a_n=\frac{n}{2}\), what is the eighth term?Class 9Sequences and Progressionsnth termEasy MathematicsIf \(a_n=27\left(\frac{1}{3}\right)^{n-1}\), what is \(a_4\)?Class 9Sequences and ProgressionsGeometric ProgressionMedium MathematicsIf \(a_n=2\cdot5^{n-1}\) what is the value of \(a_4\)?Class 9Sequences and ProgressionsGeometric ProgressionEasy MathematicsWhich option has the first four terms formed by (a_n=16-2n)?Class 9Sequences and ProgressionsArithmetic ProgressionMedium MathematicsWhich option has the first four terms formed by (a_n=10-3n)?Class 9Sequences and ProgressionsArithmetic ProgressionMedium MathematicsIf (a_n=15-3n), what is the value of (a_4)?Class 9Sequences and ProgressionsArithmetic ProgressionEasy MathematicsIf (a_n=42-6n), what is the value of (a_5)?Class 9Sequences and ProgressionsArithmetic ProgressionEasy MathematicsIf aₙ = n² + qn + 4 and a₅ = 54, what is the value of q?Class 9Sequences and ProgressionsExplicit or general ruleMedium MathematicsWhich explicit rule is correct for the sequence (9,16,23,30, …)?Class 9Sequences and ProgressionsExplicit or general ruleMedium MathematicsWhich sequence shows the first four terms of (a_n=3^n+n)?Class 9Sequences and ProgressionsSequencesHard