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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 (a_n=4^n-n) then what is the value of (a_3)?Class 9Sequences and ProgressionsExplicit or general ruleMedium MathematicsIf \(a_n=\frac{n(2n+1)}{3}\) then what is the value of \(a_4\)?Class 9Sequences and ProgressionsExplicit or general ruleMedium MathematicsIf \(a_n=3\cdot2^{n-1}\) then what is the value of \(a_7\)?Class 9Sequences and ProgressionsExplicit or general ruleMedium MathematicsWhat is the general term of the sequence (2,14,51,140,\ldots)?Class 9Sequences and ProgressionsExplicit or general ruleHard MathematicsIf \(a_n=3\cdot2^{n}+n\) then what is the value of \(a_5\)?Class 9Sequences and ProgressionsExplicit or general ruleHard MathematicsIf aₙ = 6n² − 5n + 2, what is a₄ : a₂?Class 9Sequences and ProgressionsExplicit or general ruleHard MathematicsIf \(a_n=\frac{n(n+4)}{2}\) then what is the value of \(a_8\)?Class 9Sequences and ProgressionsExplicit or general ruleHard MathematicsWhich of the following explicit rules defines an arithmetic sequence?Class 9Sequences and ProgressionsExplicit or general ruleHard MathematicsWhat is the general term of the sequence (3,6,11,20,\ldots)?Class 9Sequences and ProgressionsExplicit or general ruleMedium MathematicsIf (a_n=2^n+n), what is the value of (a_4)?Class 9Sequences and ProgressionsExplicit or general ruleMedium MathematicsIf aₙ = n(n + 1)/2, which term will be equal to 28?Class 9Sequences and ProgressionsExplicit or general ruleMedium MathematicsIf \(a_n=5\cdot2^{n-1}\), what is the value of \(a_5\)?Class 9Sequences and ProgressionsExplicit or general ruleMedium MathematicsIf aₙ = n(n + 1)/2 + 1, what is the value of a₅?Class 9Sequences and ProgressionsExplicit or general ruleMedium MathematicsIf (a_n=7n-8), which term will be equal to (41)?Class 9Sequences and ProgressionsExplicit or general ruleEasy MathematicsWhich general rule generates a sequence in which each term is the square of its position number?Class 9Sequences and ProgressionsExplicit or general ruleEasy MathematicsWhich of the following sequences is defined by a recursive rule?Class 9Sequences and ProgressionsRecursive ruleMedium MathematicsWhich of the following rules is a recursive definition of a sequence?Class 9Sequences and ProgressionsRecursive ruleEasy MathematicsIf a_n = n^2 + 6n + 5, which term is 252?Class 9Sequences and ProgressionsExplicit or general ruleHard MathematicsIf a_n = (-1)^(n+1)(2n+3), what will be the value of a_8 + a_9?Class 9Sequences and ProgressionsExplicit or general ruleMedium MathematicsIf a_n = 4n^2 + 2n - 3, what will be the value of a_11?Class 9Sequences and ProgressionsExplicit or general ruleMedium