Question: Question 10 8 marks You should be able to answer this question aer studying Unit I2. a Given the com lex numbers ( ) p

Question 10 8 marks You should be able to answer this question aer studying Unit I2. a Given the com lex numbers ( ) p 3( 141T + _ _ 141T) z : cos 15m 9 9 and 101w 10w 2 15 ' ' 1 11: (cos 9 +zsm 9 ) nd no, giving your answer in Cartesian form. [3] (b) Use de Moivre's formula to nd the Cartesian form of the complex number (1 was. [5] page 5 of Question 11 12 marks You. should be able to answer this question aer studying Unit 1'2. Solve the equation :4 = 2v' 21:. [12] Sketch the solutions in the complex plane

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