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Write the sequence with nth terms: (i)an...

Write the sequence with nth terms: (i)`a_n=3+4n` (ii) `a_n=5+2n` (iii)`a_n=6-n` (iv) `a_n=9-5n`

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Write the first five terms of each of the following sequences whose n th terms are: a_n=3n+2 (ii) a_n=(n-2)/3 a_n=3^n (iv) a_n=(3n-2)/5 a_n=(-1)^n .2^n (vi) a_n=(n(n-2))/2 (vii) a_n=n^2-n+1 (viii) a_n=2n^2-3n+1 (ix) a_n=(2n-3)/6

Write the first five terms of the sequence whose n^(t h) terms are : a_n=2^n

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Find the indicated terms in each of the following sequences whose nth terms are: a_n=5_n-4; a_(12) and a_(15) a_n=(3n-2)/(4n+5); a_7 and a_8 a_n=n(n-1); a_5 and a_8 a_n=(n-1)(2-n)(3+n); a_1,a_2,a_3 a_n=(-1)^nn ; a_3,a_5, a_8

Find the sum of the first 15 terms of each of the following sequences having n t h term as (i) a_n=3+4n (ii) b_n=5+2n

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Write the common difference of an A.P. whose n t h term is a_n=3n+7 .

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RD SHARMA ENGLISH-ARITHMETIC PROGRESSIONS-All Questions
  1. Show that the sequence 9,12,15,18,... is an A.P. Find its 16th term...

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  2. Which term of the sequence -1,3,7, 11 , ... is 95 ?

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  3. Write the sequence with nth terms: (i)an=3+4n (ii) an=5+2n (iii)an=6-...

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  4. Then n^(t h) term of an A.P. is 6n+2. Find the common difference.

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  5. Show that the sequence defined by an=5n-7 is an A.P., find its common...

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  6. Show that the sequence defined by an=3n^2-5 is not an A.P.

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  7. Find the 10th term from the end of the A.P. 8,10,12, ... 126.

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  8. The 19th term of an A.P. is equal to three times its 9th term.If its...

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  9. If the 5th term of an A.P. is 31 and 25th term is 140 more than the...

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  10. The first and last term of an A.P. are a and l respectively. If S is...

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  11. Find the number of all three digit natural numbers which are divisible...

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  12. If the seventh term of an AP is 1/9 and its ninth term is 1/7, find it...

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  13. The 24th term of an A.P. is twice its 10th term. Show that its 72th...

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  14. If 2x ,x+10 ,3x+2 are in A.P., find the value of xdot

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  15. If the numbers a , b , c , d , e form an A.P. , then find the value of...

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  16. The 9th term of an A.P. is equal to 6 times its second term. If its...

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  17. The sum of 5th and 9th term of an A.P. is 72 and the sum of 7th and...

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  18. The sum of 4th and 8th terms of an A.P. is 24 and the sum of 6th an...

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  19. Write an AdotPdot having 4 as the first term and -3 as the comon diffe...

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  20. Write the first three terms in each of the sequence defined by the ...

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