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Class 9 Mathematics

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

MathematicsIf \(a_n=\frac{n^2-1}{n+1}\), what will be the value of \(a_{15}\)?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIn the sequence (10,13,19,31,55,\ldots), the added term doubles each time. What will be the next term?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIn the sequence (2,9,30,93,282,\ldots), each next term is obtained by multiplying the previous term by (3) and adding (3). What will be the next term?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIf (a_n=3n^2-2n+5), what will be the value of (a_{12}+a_{13})?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsOn the basis of which condition can a sequence definitely be classified as an arithmetic progression (AP)?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsWhat is the average of the first (5) terms of the sequence (8,16,32,64,\ldots)?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIf \(a_n=\frac{n}{2n-1}\), which is the first term less than \(\frac{3}{5}\)?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIf (a_n=2^n+3^n), what will be the value of (a_4)?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIn the sequence (6,10,17,29,48,\ldots), the differences of successive differences are (3,5,7,\ldots). What will be the next term?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsWhich of the following sequences will always have a constant difference between consecutive terms?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIf (x-1,2x+3,4x+1) are three consecutive terms of a sequence with equal differences, what is the value of (x)?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIf \(a_n=\frac{3n-1}{2n+5}\), what will be the simplified value of \(a_7\)?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIf (a_n=2n!+1), what will be the value of (a_5)?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIf \(a_n=\frac{n^2+n}{2}\), what will be the value of \(a_{18}\)?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIn the sequence (250,239,221,x,166), the differences are (-11,-18,-25,-30). What will (x) be?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIn the sequence (6,11,x,41,66), the successive differences are (5,12,18,25). What is the value of (x)?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIn the sequence (5,9,18,34,59,\ldots), the successive differences are (4,9,16,25,\ldots). What will be the next term?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsIf (a_n=3^n-n^2), what will be the value of (a_5)?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsWhat will be the next term in the sequence (150,146,137,123,104,\ldots)?Class 9Sequences and ProgressionsSequencesLevel 43Expert MathematicsLet the general term of a sequence be \(a_n=2^n+1\), where \(n\geq1\). What type of sequence is it?Class 9Sequences and ProgressionsSequencesLevel 43Expert