_ x / 4 ^ 3 x- x (x+ 4 ) is:
Mathematics · JEE Main · NTA Exams — Limit, Continuity and Differentiability
\[\lim _{x \rightarrow \pi / 4} \frac{\cot ^{3} x-\tan x}{\cos \left(x+\frac{\pi}{4}\right)}\] is:
- \(e \sqrt{2}\)
- 4
- \(4 \sqrt{2}\)
- 8
Answer
(D) 8
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