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Mathematics

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

MathematicsWhich is the nth term of the sequence 4, 10, 18, 28, 40, …?Class 9Sequences and Progressionsnth termLevel 56Hard MathematicsIf aₙ = (n² + 1)⁄n, what is the value of a₄?Class 9Sequences and Progressionsnth termLevel 56Medium MathematicsIf (a_n=n^2), what is the formula for (a_n-a_{n-1})?Class 9Sequences and Progressionsnth termLevel 56Expert MathematicsWhat is the (n)th term of the sequence (1,3,7,13,21,\ldots)?Class 9Sequences and Progressionsnth termLevel 56Expert MathematicsWhich is the nth term of the sequence −1, 4, −9, 16, −25, …?Class 9Sequences and Progressionsnth termLevel 56Hard MathematicsWhat is the nth term of the sequence (1/2, 2/3, 3/4, 4/5, …)?Class 9Sequences and Progressionsnth termLevel 56Medium MathematicsIf aₙ = 3n² − 2n + 1, what is the value of a₈ − a₅?Class 9Sequences and Progressionsnth termLevel 56Medium MathematicsIf aₙ = n(n − 2), which term is 48?Class 9Sequences and Progressionsnth termLevel 58Medium MathematicsWhich is the nth term of the sequence 4, 6, 10, 18, 34, …?Class 9Sequences and ProgressionsExplicit or general ruleLevel 58Medium MathematicsWhat is the nth term of the sequence 7, 15, 31, 63, 127, …?Class 9Sequences and ProgressionsExplicit or general ruleLevel 58Hard MathematicsIn an arithmetic sequence, a₈ = 41 and the common difference is 5. What is its nth term?Class 9Sequences and Progressionsnth termLevel 58Medium MathematicsWhat is the 8th term of the sequence 3, 9, 27, 81, …?Class 9Sequences and ProgressionsExplicit or general ruleLevel 58Medium MathematicsWhich is the nth term of the sequence 5, 12, 21, 32, 45, …?Class 9Sequences and ProgressionsExplicit or general ruleLevel 58Hard MathematicsIn an arithmetic sequence, a₅ = 28 and a₁₁ = 64. What is its nth term?Class 9Sequences and Progressionsnth termLevel 58Medium MathematicsA sector has perimeter 32 cm and arc length 12 cm. What is its central angle in radians?Class 9Area and PerimeterArc lengthLevel 68Medium MathematicsWhich is the (n)th term of the sequence (0,3,8,15,24,\ldots)?Class 9Sequences and Progressionsnth termLevel 57Hard MathematicsWhat is the nth term of the sequence 1, 3, 7, 15, 31, …?Class 9Sequences and ProgressionsExplicit or general ruleLevel 57Medium MathematicsIf aₙ = 3n + 2, what is aₙ₊₃ − aₙ?Class 9Sequences and Progressionsnth termLevel 57Easy MathematicsWhat is the (10)th term of the sequence (7,14,28,56,\ldots)?Class 9Sequences and Progressionsnth termLevel 57Hard MathematicsIf (a_n=15-2n), when will (a_n) be zero?Class 9Sequences and Progressionsnth termLevel 57Medium