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764

Q:

निम्नलिखित समीकरण को हल कीजिए।

$$ (1-{1\over3})(1-{1\over4})(1-{1\over5})......(1-{1\over n})$$

  • 1
    $$ 1\over{n}$$
  • 2
    $$ 2\over{n}$$
  • 3
    $$ 2(n-1)\over{n}$$
  • 4
    $$ 2\over{n(n+1)}$$
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Answer : 2. "$$ 2\over{n}$$"

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