Question 9: Given that z = cos + i sin and u- iv = (1 + z)(1 − j²z²). Show that V = utan 30 2 r = 4² cos² where r is the modulus of the complex numberu + -iv. (9). 2

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Q: Question 9: Given that z = cos+ i sin and u- iv = (1+z)(1 − j²z²). Show that 30 2 V = utan r = 4²…

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