MCQ

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$\mathop {\lim }\limits_{x \to 0} \frac{{{{27}^x} - {9^x} - {3^x} + 1}}{{\sqrt 5 - \sqrt {4 + \cos x} }}  = . . .$

• A
  $\sqrt 5 {(\log 3)^2}$
• B
  $8\sqrt 5 \log 3$
• C
  $16\sqrt 5 \log 3$
• ✓
  $8\sqrt 5 {(\log 3)^2}$