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Let A(1), A(2),.., A(75) be 75 arithmeti...

Let `A_(1), A_(2),.., A_(75)` be 75 arithmetic means inserted between two distinct numbers a and b, then
`(b+A_(75))/(b-A_(75))+(a+A_(1))/(a-A_(1))`=

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MCGROW HILL PUBLICATION-PROGRESSIONS-EXERCISES (Numerical Answer Type Questions)
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  10. Let a = coefficient of x^(20) in (1+x+2x^(2)+3x^(3)+…+20x^(20))^(2)," ...

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  11. Let overset(n)underset(r=1)Sigma overset(r )underset(j=1)Sigma overset...

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  13. Suppose a,b,c gt 0. If (2)/(a+b),(1)/(b),(2)/(b+c) are in A.P., then (...

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  15. Given sum of first n terms of an A.P. is 2n + 3n^(2). rel then Another...

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  16. Suppose a,b,c ne R and satisfy (i) 2 lt a, b, c lt 18 (ii) a+b+c=25 ...

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  17. If sum of the series (1)/(x+1)+(1)/(x(x+2))+(1)/(x(x+1)(x+3))+...+(1)/...

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  18. If sum of the series overset(oo)underset(j=0)Sigma overset(oo)underset...

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  19. Suppose k ne N is fixed then sum of the series (1)/(k^(2))overset(oo)u...

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