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MHT CET · Maths · Limits

If \(\mathrm{f}(x)=\left(\frac{1+\tan x}{1+\sin x}\right)^{\operatorname{cosec} x}\) is continuous at \(x=0\), then \(f(0)\) is equal to

  1. A 0
  2. B 1
  3. C e
  4. D \(\frac{1}{\mathrm{e}}\)
Verified Solution

Answer & Solution

Correct Answer

(B) 1

Step-by-step Solution

Detailed explanation

\(\begin{aligned} f(0) & =\lim _{x \rightarrow 0} f(x) \\ & =\lim _{x \rightarrow 0}\left(\frac{1+\tan x}{1+\sin x}\right)^{\operatorname{cosec} x} \\ & =\left(\frac{1+0}{1+0}\right)^1 \\ & =1\end{aligned}\)