If 12th term of an A.P. is -13 and the s...

If 12th term of an A.P. is -13 and the sum of the first four terms is 4, what is the sum of first 10 terms ?

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MODERN PUBLICATION-SEQUENCES AND SERIES-EXERCISE 9 (c) LATQ

(i) If the sum of a certain number of terms of the A.P. 25,22,19,……………...
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If the first term of an A.P. is 2 and the sum of the first five terms ...
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If 12th term of an A.P. is -13 and the sum of the first four terms ...
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(i) Show that the sum of n consecutive odd integers beginning with 1 e...
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(i) Find the sum of odd integers from 1to 2001. (ii) Find the sum of...
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How many terms are there in the A.P. whose first and fifth terms are ...
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Prove that a sequence in an A.P., if the sum of its n terms is of the ...
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If the 5th and 12th terms of an A.P. are 30 and 65 respectively, wh...
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If the first term a(1) of an A.P. is 22, the common difference d=-4 an...
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If the sum of first p terms of an A.P. is equal to the sum of the firs...
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The first and last terms of an AP are a and l respectively. If S be th...
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In an A.P. of which a is the first term if the sum of the first p term...
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(i) The sum of n terms of two arithmetic series are in the ratio of (7...
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if the pth term of an A.P. is x and qth term is y, show tht the sum of...
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