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प्रश्न
Evaluate the following if z = 5 – 2i and w = – 1 + 3i
zw
उत्तर
zw = (5 – 2i)(– 1 + 3i)
= – 5 + 15i + 2i – 6i2
= – 5 + 17i + 6
= 1 + 17i
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