The 4th and 7th term of an arithmetic progression are 11 and -4 respectively. What is the 15th term?
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The first and last term of an A.P. is a and l respectively. If S is the sum of all the terms of the A.P. and the common difference is given by \(\frac{{{l^2} - {a^2}}}{{k - \left( {l + a} \right)}}\) then k = ?
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2
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For A.P. T18 - T8 = ........ ?
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3
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Find the nth term of the following sequence :
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4
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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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5
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If three numbers be in G.P., then their logarithms will be in
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6
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A square is drawn by joining the mid points of the sides of a given square in the same way and this process continues indefinitely. If a side of the first square is 4 cm, determine the sum of the areas all the square.
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7
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What is the sum of the first 12 terms of an arithmetic progression if the first term is -19 and last term is 36?
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8
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If the fifth term of a GP is 81 and first term is 16, what will be the 4th term of the GP?
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9
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The sum of first five multiples of 3 is:
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10
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The sum of the first and third term of an arithmetic progression is 12 and the product of first and second term is 24, then first term is
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