The nth term of a sequence is given by a...

The nth term of a sequence is given by `a_n=2n^2+n+1.` Show that it is not an A.P.

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RD SHARMA ENGLISH-ARITHMETIC PROGRESSIONS-All Questions

Show that each of the following sequences is an A.P. Also, find the ...
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Show that each of the following sequences is an A.P. Also, find the ...
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The nth term of a sequence is given by an=2n^2+n+1. Show that it is no...
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Show that the sequence 9,12,15,18,... is an A.P. Find its 16th term...
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Which term of the sequence 4,9,14,19…. is 124?
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How many terms are there in the sequence 3,6,9, 12 ,....... 111 ?
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Is 184 a term of the sequence 3,7,11, ... ?
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If pth,qth and rth terms of an A.P. are a, b, c respectively, then sho...
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If pth, qth, and rth terms of an A.P. are a ,b ,c , respectively, the...
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Show that the sum of (m+n)^(t h)a n d\ (m-n)^(t h) term of an A.P. is ...
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If m times the m^(t h) term of an A.P. is equal to n times its n^(t h)...
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If the p^(t h) term of an A.P. is q and the q^(t h) term is p , prove ...
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If the mth term of an A.P. be 1//n and nth term be 1//m then show that...
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Determine the number of terms in the terms in the A.P. 3,7,11…407. ...
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How many numbers of two digits are divisible by 7?
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Show that there is no A.P. which consists of only distinct prime nu...
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In the arithmetic progressions 2,5,8,… upto 50 terms and 3,5,7,9… upto...
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Find: 10 t h term of the A.P. 1,4,7,10..
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Find: nth term of the A.P. 13,8,3,-2,…
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Find: 18th term of the A.P. sqrt(2),\ 3sqrt(2),\ 5sqrt(2) ddot
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