2022 ACJC Promo Q1

2022 ACJC Promo Q1

5 marks
Promo
  1. If \(y=\ln \left( \frac{{{\mathrm{e}}^{\sqrt{x}}}}{{{\cos }^{3}}x} \right)\), find \(\frac{\mathrm{d}y}{\mathrm{d}x}\) in terms of \(x\), where \(0 < x < \frac{\pi }{2}\).[2]
  2. Given that \({{y}^{\frac{1}{x}}}={{x}^{\ln x}}\), find \(\frac{\mathrm{d}y}{\mathrm{d}x}\) in terms of \(x\) and \(y\).[3]

Video Solution:

Video Solution

Video solution locked

A free account saves your progress; this video needs tuition enrolment.

Solution:

Solution locked

680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs tuition enrolment.

Create a free account to practise similar questions.

Need help? Join our JC Math tuition classes.

Learn more