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JEE Math Practice Question

Let $$\beta(\mathrm{m}, \mathrm{n})=\int\limits_0^1 x^{\mathrm{m}-1}(1-x)^{\mathrm{n}-1} \mathrm{~d} x, \mathrm{~m}, \mathrm{n}>0$$. If $$\int\limits_0^1\left(1-x^{10}\right)^{20} \mathrm{~d} x=\mathrm{a} \times \beta(\mathrm{b}, \mathrm{c})$$, then $$100(\mathrm{a}+\mathrm{b}+\mathrm{c})$$ equals _________.

  1. A.2012
  2. B.1021
  3. C.1120
  4. D.2120

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