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

MathematicsWhat is the difference between the sums of the first (90) and first (85) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61Medium MathematicsIf \(S_n\) is the sum of the first \(n\) natural numbers, which relation correctly represents the increase in the sum when moving from \(n\) to \(n+1\) terms?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61Medium MathematicsFor the sum \(S_n\) of the first \(n\) natural numbers, what does \(S_n-S_{n-1}\) represent when \(n\geq 2\)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62Easy MathematicsIn the sequence (14,22,30,38,\ldots), which term is (126)?Class 9Sequences and Progressionsnth termLevel 58Hard MathematicsAn arithmetic sequence has (a_n=2n+9). What is its first term?Class 9Sequences and Progressionsnth termLevel 57Hard MathematicsWhat is the (n)th term of the sequence (14,28,42,56,\ldots)?Class 9Sequences and Progressionsnth termLevel 61Easy MathematicsWhat is the (n)th term of the sequence \(\frac{5}{2},5,\frac{15}{2},10,\ldots\)?Class 9Sequences and Progressionsnth termLevel 61Easy MathematicsWhich of the following statements is correct about the sequence whose nth term is \(a_n=4n+1\)?Class 9Sequences and Progressionsnth termLevel 61Easy MathematicsWhat is the (13)th term of the sequence (5,12,19,26,\ldots)?Class 9Sequences and Progressionsnth termLevel 58Medium MathematicsWhich option gives the nth term of an arithmetic progression whose first term is 7 and in which each successive term increases by 3?Class 9Sequences and Progressionsnth termLevel 60Easy MathematicsWhat is the (14)th term of the sequence (2,9,16,23,\ldots)?Class 9Sequences and Progressionsnth termLevel 57Medium MathematicsWhich of the following sequences has a constant difference between consecutive terms and is therefore an arithmetic progression?Class 9Sequences and Progressionsnth termLevel 57Medium MathematicsIn the sequence (11,15,19,23,\ldots), what is (n) for (a_n=63)?Class 9Sequences and Progressionsnth termLevel 56Medium MathematicsWhat is the (15)th term of the sequence (3,7,11,15,\ldots)?Class 9Sequences and Progressionsnth termLevel 56Medium MathematicsWhat will be the ninth term of the sequence (2,7,12,17,\ldots)?Class 9Sequences and Progressionsnth termLevel 59Easy MathematicsIf \(a_1=27\) and \(r=\frac{2}{3}\), what will \(a_4\) be?Class 9Sequences and ProgressionsGeometric ProgressionLevel 54Expert MathematicsIf (a_1=15) and (r=2), what will (a_4+a_6) be?Class 9Sequences and ProgressionsGeometric ProgressionLevel 54Expert MathematicsIf (a_1=9) and (r=3), what will (a_4+a_5) be?Class 9Sequences and ProgressionsGeometric ProgressionLevel 54Expert MathematicsWhat is the sum of the first (4) terms of the geometric progression (14,28,56,112,\ldots)?Class 9Sequences and ProgressionsGeometric ProgressionLevel 55Medium MathematicsWhat is the sum of the first (4) terms of the geometric progression (8,24,72,216,\ldots)?Class 9Sequences and ProgressionsGeometric ProgressionLevel 55Medium