If the sum of p terms of an A.P. is q and the sum of q terms is p, then the sum of (p + q) terms will be
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The common difference of the A.P. \(\frac{1}{{2b}} \frac{{1 - 6b}}{{2b}} \frac{{1 - 12b}}{{2b}}\) . . . . . is
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Which term of the A.P. 24, 21, 18, ............ is the first negative term?
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What is the sum of the first 17 terms of an arithmetic progression if the first term is -20 and last term is 28?
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If sum of n terms of an A.P. is 3n2 + 5n and Tm = 164 then m =
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5
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If log 2, log (2x -1) and log (2x + 3) are in A.P, then x is equal to ___
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6
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The sum of first five multiples of 3 is:
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7
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In an A.P., if d = -4, n = 7, an = 4, then a is
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8
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If 18, a, b - 3 are in A.P. then a + b =
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9
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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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10
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15th term of A.P., x - 7, x - 2, x + 3, ........ is
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