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Explicit Formula

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

MathematicsIf aₙ = rn + s, a₃ = 14, and a₁₀ = 49, what will be a₁₅?Class 9Sequences and Progressionsnth termMedium MathematicsIf the nth term of a sequence is \(a_n=6n-5\), what will be the 18th term?Class 9Sequences and Progressionsnth termEasy MathematicsIf aₙ = 4n² + 7n, what is the value of a₈ − a₃?Class 9Sequences and Progressionsnth termMedium MathematicsIf aₙ = n(n + 1)/2, what is the sixth term?Class 9Sequences and Progressionsnth termEasy MathematicsWhat is the nth term of the sequence (10, 13, 16, 19, …)?Class 9Sequences and Progressionsnth termEasy MathematicsIf aₙ = 11n + 2, what is the value of a₄ + a₆?Class 9Sequences and ProgressionsExplicit or general ruleMedium MathematicsIf a_n = 2 × 5^(n−1), what is the value of a₄ + a₅?Class 9Sequences and ProgressionsGeometric ProgressionMedium MathematicsIf aₙ = 3 × 4ⁿ⁻¹, what is the value of a₄ + a₅?Class 9Sequences and ProgressionsGeometric ProgressionMedium MathematicsIf aₙ = 64 × (1/2)ⁿ⁻¹, what is the value of a₅?Class 9Sequences and ProgressionsExplicit or general ruleEasy MathematicsWhat is the nth term of the arithmetic progression 8, 17, 26, 35, ...?Class 9Sequences and Progressionsnth termEasy MathematicsWhat is the nth term of the arithmetic progression 5, 14, 23, 32, ...?Class 9Sequences and Progressionsnth termMedium MathematicsIf \(a_n=\frac{n(3n+5)}{2}\), what is the value of \(a_8\)?Class 9Sequences and ProgressionsExplicit or general ruleExpert MathematicsWhich explicit rule is correct for the sequence (8,20,42,80,\ldots)?Class 9Sequences and ProgressionsExplicit or general ruleExpert MathematicsIf \(a_n=3\cdot2^n+2n^2\), what is the value of \(a_4\)?Class 9Sequences and ProgressionsExplicit or general ruleExpert MathematicsWhat is the general term of the sequence (7,25,61,121,\ldots)?Class 9Sequences and ProgressionsExplicit or general ruleExpert MathematicsIf \(a_n=\frac{n(5n-1)}{2}\), what is the value of \(a_6\)?Class 9Sequences and ProgressionsExplicit or general ruleExpert MathematicsWhich explicit rule is correct for the sequence (2,15,64,257,\ldots)?Class 9Sequences and ProgressionsExplicit or general ruleExpert MathematicsWhat is the general term of the sequence (4,22,66,148,\ldots)?Class 9Sequences and ProgressionsExplicit or general ruleExpert MathematicsIf \(a_n=7\cdot2^{n-1}+4\), what is the value of \(a_5\)?Class 9Sequences and ProgressionsExplicit or general ruleExpert MathematicsWhich general term is correct for the sequence (3,8,17,32,\ldots)?Class 9Sequences and ProgressionsExplicit or general ruleExpert