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10. If 2 is an arbitrary complex number, prove that 22? is always a real number. [3 marks] 5r :1 3 117Write the complex number

10. If 2 is an arbitrary complex number, prove that 22? is always a real number. [3 marks] 5r :1 3 117Write the complex number 29 in polar and rectangular form. [2 marks] 12LWrite the complex number 1 i in polar and exponential form.[3 marks]

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