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Quadratic Sequence

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

MathematicsWhich is the (n)th term of the sequence (2,12,30,56,90,\ldots)?Class 9Sequences and Progressionsnth termExpert MathematicsIf (a_n=5n^2+2n-9), what is (a_{n+2}-a_n)?Class 9Sequences and Progressionsnth termExpert MathematicsIf (a_n=3n^2+5n-8), what is the value of (a_9-a_6)?Class 9Sequences and Progressionsnth termExpert MathematicsWhich is the nth term of the sequence 8, 21, 40, 65, 96, …?Class 9Sequences and Progressionsnth termMedium MathematicsIf (a_n=2n^2+9n-11), what is the value of (a_{10}-a_4)?Class 9Sequences and Progressionsnth termExpert MathematicsWhich is the (n)th term of the sequence (9,26,51,84,125,\ldots)?Class 9Sequences and Progressionsnth termExpert MathematicsIf (a_n=7n^2-3n+5), what is the value of (a_6)?Class 9Sequences and Progressionsnth termExpert MathematicsIf (a_n=3n^2+4n), what is the value of (a_7-a_4)?Class 9Sequences and Progressionsnth termHard MathematicsA sequence has (a_n=4n^2-9n+7). What is the value of (a_{10}-a_3)?Class 9Sequences and Progressionsnth termHard MathematicsIf (a_n=n^2+10), which term is (131)?Class 9Sequences and Progressionsnth termHard MathematicsWhich is the (n)th term of the sequence (1,7,17,31,49,\ldots)?Class 9Sequences and Progressionsnth termHard MathematicsIf (a_n=4n^2+n-6), what is (a_{n+2}-a_n)?Class 9Sequences and Progressionsnth termHard MathematicsIf (a_n=2n^2+3n-4), what is the value of (a_8-a_5)?Class 9Sequences and Progressionsnth termHard MathematicsIf (a_n=6n^2-5n+2), what is (a_{n+1}-a_n)?Class 9Sequences and Progressionsnth termHard MathematicsWhat is the (n)th term of the sequence (3,11,23,39,59,\ldots)?Class 9Sequences and Progressionsnth termHard MathematicsIf (a_n=n^2+7n-8), what is the value of (a_9-a_4)?Class 9Sequences and Progressionsnth termHard MathematicsIf (a_n=5n^2-4n+3), what is the value of (a_6)?Class 9Sequences and Progressionsnth termHard MathematicsIf (a_n=4n^2+n), what is (a_{n+1}-a_n)?Class 9Sequences and Progressionsnth termExpert MathematicsWhat is the (n)th term of the sequence (5,8,13,20,29,\ldots)?Class 9Sequences and Progressionsnth termExpert MathematicsIf (a_n=n^2-3n+5), what is the smallest term value?Class 9Sequences and Progressionsnth termExpert