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Using L’Hospital’s Rule, evaluate:
Using L’Hospital’s Rule, evaluate:
$\lim_{x \to \pi/2} \left(x \tan x - \frac{\pi}{2} \sec x\right)$
Answer
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From ISC 2017 Mathematics Paper 1, question 1(iv).
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From ISC 2017 Mathematics Paper 1, question 1(iv).