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Question 2, Exercise 1.4
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\sin \dfrac{\pi}{3}\right) = i. $$ **Alternative Method:** \begin{align} &\left(\cos \dfrac{\pi}{6} + i
Question 3, Exercise 1.4
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nd $(5)$ are our required results. **Alternative Method for Part (i)** We have given \begin{align*} & \l
Question 7, Review Exercise
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===== Question 7 ===== Solve by completing square method $2 z^{2}-11 z+16=0$. ** Solution. ** \begin{al