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Find the sum of following Aps. 1/(15),...

Find the sum of following Aps.
`1/(15),(1)/(12),(1)/(10),.....` to 11 terms.

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The correct Answer is:
`33/20`
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Find the sum of the following Aps, (i) 2,7,12,…..to 10 terms. (ii) -37, -33, -29 , to 12 terms (iii) 0.6, 1.7, 2.8,…… to 100 terms (iv) 1/15, 1/12, 1/10 , ………….. To 11 terms.

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Find the number of terms in each of the following Aps : 18,15(1)/(2),13,........,-47

Find the sum of following Aps. 0.6,1.7,2.8,...., to 100 terms

Find the sum: 1 + (1)/(2) (1 + 2) + (1)/(3) (1 + 2 + 3) + ……up to 16 terms.

Find the inverse of each of the following matrices [{:(2,-1,1),(-1,2,-1),(1,-1,2):}]

Find the sum of the series 1+4+10+22+...

Find the sum of indicated number of terms in each of the following Aps (i) 16, 11,6,….., 23 terms (ii) -0.5, -1.0, -1.5 ,………,10 terms (iii) -1,1/4,3/2 ,…..10 terms

Find the sum of first 24 terms of the A.P. a_(1) , a_(2), a_(3) ...., if it is know that a_(1) + a_(5) + a_(10) + a_(15) + a_(20) + a_(24) = 225

KUMAR PRAKASHAN-ARITHMETIC PROGRESSION-EXERCISE 5.3
  1. Find the sum of following Aps. -37 , -33, -29 , ....., to 12 term

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  2. Find the sum of following Aps. 0.6,1.7,2.8,...., to 100 terms

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  3. Find the sum of following Aps. 1/(15),(1)/(12),(1)/(10),..... to 11 ...

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  4. Find the sums sums given below : 7 + 10(1)/(2)+14+....+84

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  5. Find the sums sums given below : 34+32+30+.....+10

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  6. Find the sums sums given below : (-5)+(-8)+(-11)+......+(-230)

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  7. In an AP : Given a = 5 , d = 3 , a(n)=50 , find n and Sn

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  8. In an AP : Give a = 7 , a(13)= 35 , find d and S(13) .

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  9. In an AP : Give a = 7 , a(12)= 37 , d = 3, find a and S(12) .

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  10. In an AP : Given a(3) = 15 ,S(10)=125 , find d and a(10)

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  11. In an AP : Given d = 5 , s(9)=75 find a and a9

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  12. In an AP : Given a=2, d=8 , S(n)=90 , find n and an .

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  13. In an AP : Given a = 8 , a(n)=62 , S(n)=210 , find n and d .

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  14. In an AP : Given an=4 , d = 2 , S(n)=-14 , find n and a .

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  15. In an AP : Given a = 3 , n = 8 , S(n) = 192 , find d .

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  16. In an AP : Given l = 28 , S(n) = 144 , and there are total 9 terms...

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  17. How many terms of the AP , 9 , 17 , 25 .......must be taken to give a ...

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  18. The first term of an AP is 5, the last term is 45 and the sum is 400. ...

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  19. The first and the last terms of an AP are 17 and 350 respectively . If...

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  20. Find the sum of first 22 terms of an AP in which d = 7 and 22nd term i...

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