The two geometric means between the number 1 and 64 are
8 and 16
2 and 16
4 and 8
4 and 16
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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 + 1, 2a + 1, 4a - 1 are in A.P., then the value of a is:
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3
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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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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 first term of an Arithmetic Progression is 22 and the last term is -11. If the sum is 66, the number of terms in the sequence are:
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6
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If the first term of an A.P. is 2 and common difference is 4, then the sum of its 40 term is
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7
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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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8
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If the nth term of an A.P. is 2n + 1, then the sum of first n terms of the A.P. is
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9
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Which term of the A.P. 92, 88, 84, 80, ...... is 0?
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10
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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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