$\mathop {\lim }\limits_{x \to \pi /2} \tan x \log \sin x = $

  • A
    $0$
  • B
    $1$
  • C
    $-1$
  • D
    इनमें से कोई नहीं

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मान लीजिए $l = \mathop {Lim}\limits_{x \to {0^ + }} x^m (\ln x)^n$ जहाँ $m, n \in N$,तो:

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