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प्रश्न
Evaluate the following if z = 5 – 2i and w = – 1 + 3i
2z + 3w
उत्तर
2z + 3w = 2(5 – 2i) + 3(– 1 +3i)
= 10 – 4i – 3 + 9i
= 7 + 5 i
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