$\frac{1}{3^{2}-1}+\frac{1}{5^{2}-1}+\frac{1}{7^{2}-1}+\ldots+\frac{1}{(201)^{2}-1}$ ની કિંમત શોધો.

  • A
    $\frac{101}{404}$
  • B
    $\frac{25}{101}$
  • C
    $\frac{101}{408}$
  • D
    $\frac{99}{400}$

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Similar Questions

$\sum\limits_{r = 0}^{100} {(r^2 + 4r + 4)(r + 1)!}$ ની કિંમત :-

$\sum\limits_{k = 1}^\infty {\frac{{3{k^2} + 3k + 1}}{{{{\left( {{k^2} + k} \right)}^3}}}} $ નું મૂલ્ય કેટલું થાય?

$\frac{1}{2 \cdot 5} + \frac{1}{5 \cdot 8} + \frac{1}{8 \cdot 11} + \ldots + \frac{1}{(3n-1)(3n+2)}$ ની કિંમત શોધો.

વિધાન-$1$: શ્રેણી $1 + (1 + 2 + 4) + (4 + 6 + 9) + (9 + 12 + 16) + \dots + (361 + 380 + 400)$ નો સરવાળો $8000$ છે.
વિધાન-$2$: કોઈપણ પ્રાકૃતિક સંખ્યા $n$ માટે,$\sum_{k=1}^n (k^3 - (k-1)^3) = n^3$.

Difficult
View Solution

પદાવલિ $3(1!) - 4(2!) + 5(3!) - 6(4!) + \dots - 2008(2006)! + (2007)!$ નું મૂલ્ય શોધો.

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