Boy Mow Chau's answer to coral's Junior College 1 H2 Maths Singapore question.

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Boy Mow Chau
Boy Mow Chau's answer
317 answers (Tutor Details)
1st
note ...

for (a), θ is small, but π/3+θ is not small.
have to use compound angle formula for tangent & then expand.

for part (b)(i), can change the ln equation to an exponential equation to make the subsequent differentiation easier.
coral
Coral
5 months ago
thank you!