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Write first 4 terms in each of the seque...

Write first 4 terms in each of the sequences :
(i) ` a_(n) = (5n+2)` (ii) ` a_(n) = (( 2n -3))/4` (iii) ` a_(n)= (-1)^(n-1) xx 2 ^(n +1)`

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The correct Answer is:
(i) 7,12,17,12 (ii) `(-1)/4,1/4,3/4,5/4` (iii) 4,-8,16,-32
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RS AGGARWAL-ARITHMETIC PROGRESSION-Exercise 11A
  1. Write first 4 terms in each of the sequences : (i) a(n) = (5n+2) (...

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  2. Find first five terms of the sequence, defiend by a(1) =1 , a(n) =...

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  3. find first 5 terms of the sequences, defined by a(1) =-1 , a(n) = (...

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  4. Find the 23rd term of the A.P. 7,5,3,1,...

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  5. Find the 20th term of the AP sqrt2,3sqrt2,5sqrt2,7sqrt2,….,

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  6. find the nth term of the AP 8,3,-2,-7,,-12,….,

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  7. Find the nth term of the AP 1, 5/6,3/2,1/2 ,….,

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  8. Which term of the AP 9,14,19,24,29,……, is 379 ?

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  9. Which term of the AP 64, 60,56,48,……, is 0 ?

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  10. How many terms are there in the AP 11,18,25,32,39,…..,207?

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  11. How many terms are there in the AP 1""5/6,1""1/6,1/2,(-1)/6,(-5)/6,……...

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  12. is -47 a term of the AP 5,2,-1,-4,-7...?

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  13. The 2nd,31st and the last terms of an AP are 5 and -3 respectively. Fi...

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  14. The 2 nd,31st and last terms of an A.P.are 7 3/4, 1/2 and -6 1/2 respe...

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  15. If the 9th term of an AP is zero, then prove that its 29th term is twi...

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  16. The 4t h term of an A.P. is three times the first and the 7t h term...

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  17. If 7 times the 7th term of an AP is equal to 11 times its 11th term, t...

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  18. Find the 28th term from the end of the AP 6,9,12,15,18,…..,102

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  19. find the 16th term form the end of the AP 7,2,-3,-8,-13,…., -113

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  20. How many three digit numbers are divisible by 7?

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