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If b-c, 2b-x and b-a are in H.P., then a...

If b-c, 2b-x and b-a are in H.P., then a-(x/2), b-(x/2) and c-(x/2) are in

A

AP

B

GP

C

HP

D

None of these

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AAKASH INSTITUTE-SEQUENCES AND SERIES -Assignment (SECTION - B) One option is correct
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  2. If 1,log9(3^(1-x)+2), log3(4*3^x-1) are in A.P then x equals to

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  3. If b-c, 2b-x and b-a are in H.P., then a-(x/2), b-(x/2) and c-(x/2) ar...

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  4. Let log(2) 3 = alpha , then log(64) 729 is

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  5. sum(n=1)^(oo) (""^(n)C(0) + ""^(n)C(1) + .......""^(n)C(n))/(n!) is eq...

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  6. sum(n=1)^(oo) ((Inx)^(n))/(n!) is equal to

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  7. The sum of sum(n=1)^(oo) ""^(n)C(2) . (3^(n-2))/(n!) equal

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  8. The coefficient of x^(4) "in" (1 - 3x + x^(2))/(e^(x)) equals

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  9. The sum of the series (2)/(1!) + (4)/(3!) + (6)/(5!) + ……. "to" oo ...

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  10. the value of 2/(1!)+ (2+4)/(2!) + (2+4+6)/(3!) +.................. ...

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  11. ((1 )/(2!) + (1)/(4!) + (1)/(6!) + ......)/((1)/(1!) + (1)/(3!) + (1)/...

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  12. The sum of the series (a + b ) (a - b) + (a + b)(a-b)(a^(2) + b^(2)...

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  13. The sum of the series ((a-b)/(a))+1/2((a-b)/(x))^(2)+1/3((a-b)/(a))^...

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  14. The sum of the series 1/1.2-1/2.3+1/3.4-1/4.5+ ... is

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  15. sum(n=0)^(oo) (n^(2) + n + 1)/((n +1)!) is equal to

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  16. If x = (1)/(1.2) + (1)/(3.4) + (1)/(5.6) …….oo, and y = 1 - (1)/(2...

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  17. If x^(2)y = 2x - y and |x| lt 1 , then (( y + (y^(3))/(3) + (y^(5))...

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  18. The numbers log(180) 12, log(2160) 12, log(25920) 12 are in

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  19. 2[(1)/(2x + 1) + (1)/(3(2x + 1)^(3)) + (1)/(5(2x + 1)^(5)) + (1)/(5(2x...

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  20. If (e^(x))/(1-x) = B(0) +B(1)x+B(2)x^(2)+...+B(n)x^(n)+... , then the ...

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