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b) c) Evaluate (1 + 4i) in the form x + iy. +i Evaluate 1 + 5i - 4i7 + 6i6 in the form

b) c) Evaluate (1 + 4i) in the form x + iy. +i Evaluate 1 + 5i - 4i7 + 6i6 in the form x + iy. +i Evaluate 5+7i 1 + i +i in the form x + iy.

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