Question: 6. [6] Consider the complex number z = 2+71 6+21 a. Express z in the form a + ib, where a, be Q. b. Find

6. [6] Consider the complex number z = 2+71 6+21" a. Express z in the form a + ib, where a, be Q. b. Find the exact value of the modulus of z. c. Find the argument of z, giving your answer to 4 decimal places

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