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Sequences And Progressions

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 termLevel 57Expert MathematicsWhich is the (n)th term of the sequence \(\frac{2}{9},\frac{5}{16},\frac{8}{23},\frac{11}{30},\ldots\)?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsWhich of the following nth-term formulas represents an arithmetic progression?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIf (a_n=n^2+mn+4) and (a_2+a_4=46), what is the value of (m)?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIf \(a_n=\frac{2n^2+1}{n+1}\), what is the value of \(a_4\)?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIf (a_n=100-7n), which is the first term less than (30)?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIf (a_n=an+b), (a_2+a_9=54), and (a_4+a_{11}=78), what will be (a_{12})?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIf (a_n=n^2+2n+5), what is the value of (a_9-a_1)?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIf (a_n=2n^2+kn+3) and (a_3=30), what will be the value of (a_5)?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIf aₙ = (−1)ⁿ(n + 2), what is the value of a₆ + a₇?Class 9Sequences and ProgressionsExplicit or general ruleLevel 57Medium MathematicsIf aₙ = rn + s, a₃ = 14, and a₁₀ = 49, what will be a₁₅?Class 9Sequences and Progressionsnth termLevel 57Medium MathematicsIf \(a_n=5\cdot3^{n-1}-2\), what will be \(a_4\)?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIf (a_n=7n-9), which term is (131)?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsWhich is the (n)th term of the sequence (0,5,16,33,56,\ldots)?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIf (a_n=3n^2+5n), what is (a_{n+1}-a_n)?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIf \(a_n=\frac{n(n+5)}{3}\), what is the value of \(a_6\)?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIf (a_n=pn+q), (a_4+a_7=64), and (a_5+a_8=76), what will be (a_{10})?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIf (a_n=40-5n), which will be the first negative term?Class 9Sequences and Progressionsnth termLevel 57Expert MathematicsIn a linear sequence, a₅ = 23 and a₁₂ = 58. What will be a₂₀?Class 9Sequences and Progressionsnth termLevel 57Medium MathematicsWhat is the (n)th term of the sequence (3,9,18,30,45,\ldots)?Class 9Sequences and Progressionsnth termLevel 57Expert