The sum of the first n terms of an A...

The sum of the first `n` terms of an A.P. is `3n^2+6n` . Find the `n^(th)` term of this A.P.

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RD SHARMA ENGLISH-ARITHMETIC PROGRESSIONS-All Questions

The sum of first n terms of an A.P. is 3n^2+4n . Find the 25 t h...
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The sum of the first n terms of an A.P. is 3n^2+6n . Find the n^(t...
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If Sn denotes the sum of the first n terms of an A.P., prove tha...
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The sum of first n terms of an A.P. is 5n-n^2 . Find the n t h t...
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The sum of the first n terms of an A.P. is 4n^2+2n . Find the n ...
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The first and the last terms of an AP are 7 and 49 respectively. If...
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If Sn denotes the sum of first n terms of an A.P., prove that S(...
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Define an arithmetic progression.
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Write the common difference of an A.P. whose n t h term is an=3n+7 ...
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Which term of the sequence 114 ,\ 109 ,\ 104 ,\ is the first ne...
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Write 5t h term from the end of the A.P. 3,\ 5,\ 7,\ 9,\ ddot,\ 201...
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Write the value of x for which 2x ,\ x+10 and 3x+2 are in A.P.
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Write the n t h term of an A.P. the sum of whose n terms is Sn .
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