The sum of the first 16 terms of an AP whose first term and third term are 5 and 15 respectively is
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Sum of n terms of the series \(\sqrt 2 + \sqrt 8 + \sqrt {18} + \sqrt {32} + \) ....... is
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2
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If the 3rd and the 5th term of an arithmetic progression are 13 and 21, what is the 13th term?
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3
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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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4
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(1) + (1 + 1) + (1 + 1 + 1) + ....... + (1 + 1 + 1 + ...... n - 1 times) = ......
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5
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The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?
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6
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The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?
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7
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The 7th and 21st terms of an AP are 6 and -22 respectively. Find the 26th term
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8
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Find the first term of an AP whose 8th and 12th terms are respectively 39 and 59.
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9
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If Sn denote the sum of the first n terms of an A.P. If S2n = 3Sn , then S3n : Sn is equal to
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10
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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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