ABCD is a square, lettered anticlockwise, on an Argand diagram. If the points A, B represent 3
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ABCD is a square, lettered anticlockwise, on an Argand diagram. If the points A, B represent 3 + j2, –1 + j4 respectively, show that C lies on the real axis, and find the number represented by D and the length of AB.
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