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Substitution

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

MathematicsIf \(a_n=\frac{n(5n-1)}{2}\), what is the value of \(a_6\)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 49Expert MathematicsIf (a_n=5^n+n-4), what is the value of (a_3)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 49Expert MathematicsIf aₙ = 6n² − n + 4, what is a₄ : a₂?Class 9Sequences and ProgressionsExplicit or general ruleLevel 49Hard MathematicsIf \(a_n=\frac{3n^2+5n}{4}\), what is the value of \(a_4\)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 49Expert MathematicsIf (a_n=2n^3+n^2+n), what is the value of (a_3)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 49Expert MathematicsIf (a_n=n^3+3n^2-2), what is the value of (a_4)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 49Expert MathematicsIf \(a_n=7\cdot2^{n-1}+4\), what is the value of \(a_5\)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 49Expert MathematicsIf (a_n=(3n-2)^2), what is the value of (a_4)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 49Expert MathematicsIf \(a_n=\frac{n(4n+1)}{2}\), what is the value of \(a_5\)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 49Expert MathematicsIf (a_n=4n^2+3), what is the value of (a_3+a_5)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 48Expert MathematicsIf a_n = pn + 7 and a_8 = 71, what is the value of p?Class 9Sequences and ProgressionsExplicit or general ruleLevel 48Easy MathematicsWhich option gives the first four terms of a_n = n(n + 3)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 48Medium MathematicsIf a_n = n^2 + 6n + 5, what are the first four terms?Class 9Sequences and ProgressionsExplicit or general ruleLevel 48Medium MathematicsIf \(a_n=3\cdot2^n-n\), what is the value of \(a_5\)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 47Expert MathematicsIf a_n = 4n^2 + 3n + 2, what is a_4 − a_1?Class 9Sequences and ProgressionsExplicit or general ruleLevel 47Medium MathematicsIf (a_n=2n^2+7n-4), what is the value of (a_6)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 47Expert MathematicsIf (a_n=5^n-2n), what is the value of (a_3)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 47Expert MathematicsIf \(a_n=\frac{n(2n+3)}{2}\), what is the value of \(a_6\)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 47Expert MathematicsIf (a_n=2^n+3n), what is the value of (a_5)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 47Expert MathematicsIf (a_n=(2n-1)^2+2), what is the value of (a_5)?Class 9Sequences and ProgressionsExplicit or general ruleLevel 50Hard