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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।

MathematicsIf aₙ = n³ − n, what will be the value of a₇ − a₅?Class 9Sequences and Progressionsnth termLevel 41Medium MathematicsIf (a_1=1) and (a_{n+1}=2a_n+n), what will be (a_5)?Class 9Sequences and ProgressionsSequencesLevel 41Expert MathematicsFor the sequence 6, 14, 26, 42, ..., a_n = 2n² + 2n + 2. What is the value of a_15 - a_13?Class 9Sequences and ProgressionsExplicit or general ruleLevel 41Medium MathematicsIn the sequence (15, 12, 7, 0, -9, ...), the differences are (-3, -5, -7, -9, ...). What will be the next term?Class 9Sequences and ProgressionsRecursive ruleLevel 44Medium MathematicsWhat is the 25th term of the sequence (-5,-1,3,7,...)?Class 9Sequences and Progressionsnth termLevel 44Medium MathematicsIn the sequence \((13,18,23,28,\ldots)\), which term is 98?Class 9Sequences and ProgressionsArithmetic ProgressionLevel 44Medium MathematicsIn the sequence \((1,2,4,7,11,\ldots)\), the added numbers are \((1,2,3,4,\ldots)\). What is the eighth term?Class 9Sequences and ProgressionsRecursive ruleLevel 44Medium MathematicsIn the sequence \((50,45,37,26,12,\ldots)\), the differences are \((-5,-8,-11,-14,\ldots)\). What is the next term?Class 9Sequences and ProgressionsSequencesLevel 44Medium MathematicsIn the sequence \((1,4,10,19,31,\ldots)\), the successive differences are \((3,6,9,12,\ldots)\). What is the sixth term?Class 9Sequences and ProgressionsSequencesLevel 44Medium MathematicsIn the sequence \((2,3,5,8,13,\ldots)\), each term is the sum of the previous two terms. What is the eighth term?Class 9Sequences and ProgressionsRecursive ruleLevel 44Medium MathematicsIn the sequence \((81,27,9,3,\ldots)\), each term is \(\frac{1}{3}\) of the previous term. What is the sixth term?Class 9Sequences and ProgressionsGeometric ProgressionLevel 44Medium MathematicsFor the sequence 2, 5, 10, 17, 26, ..., the nth term is a_n = n² + 1. What is the value of a_12 − a_10?Class 9Sequences and ProgressionsExplicit or general ruleLevel 41Medium MathematicsIn the sequence (1,4,9,16,...), what is the difference between the 15th term and the 14th term?Class 9Sequences and Progressionsnth termLevel 44Medium MathematicsWhat will be the next term of (20,31,46,65,88,...)?Class 9Sequences and ProgressionsSequencesLevel 43Medium MathematicsWhat is the next term in (6,13,29,61,\ldots) if the rule is double the previous term and add (1)?Class 9Sequences and ProgressionsSequencesLevel 43Hard MathematicsIf (a_1=9), (a_2=16), and each next term is the sum of the previous two terms, what is (a_6)?Class 9Sequences and ProgressionsSequencesLevel 43Hard MathematicsWhat is the ratio of the (3)rd terms of (7,42,252,\ldots) and (5,30,180,\ldots)?Class 9Sequences and ProgressionsSequencesLevel 43Hard MathematicsWhat is the next term in (5,17,53,161,\ldots) if the rule is triple the previous term and add (2)?Class 9Sequences and ProgressionsSequencesLevel 43Hard MathematicsWhat is the next term of (4,10,14,24,38,\ldots) if each new term is the sum of the previous two terms?Class 9Sequences and ProgressionsSequencesLevel 43Hard MathematicsWhat will be the (8)th term of (16,25,36,49,64,\ldots)?Class 9Sequences and ProgressionsSequencesLevel 43Hard