The common difference of the A.P. \(\frac{1}{3}, \frac{{1  3b}}{3} , \frac{{1  6b}}{3}\) . . . . . . is
\(\frac{1}{3}\)
\(  \frac{1}{3}\)
b
b
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1
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Find the nth term of the following sequence :
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2
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If a, b, c are in A.P., then (a – c)^{2}/ (b^{2} – ac) =
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3
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Find the n^{th} term of the following sequence :
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4
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The 2^{nd} and 6^{th} term of an arithmetic progression are 8 and 20 respectively. What is the 20^{th} term?
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5
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If k, 2k – 1 and 2k + 1 are three consecutive terms of an AP, the value of k is
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6
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If a + 1, 2a + 1, 4a  1 are in A.P., then the value of a is:
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7
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What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55?
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8
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Find the 15th term of the sequence 20, 15, 10 . . . . .
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9
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15th term of A.P., x  7, x  2, x + 3, ........ is
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10
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A bacteria gives birth to two new bacteria in each second and the life span of each bacteria is 5 seconds. The process of the reproduction is continuous until the death of the bacteria. initially there is one newly born bacteria at time t = 0, the find the total number of live bacteria just after 10 seconds :
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