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Engineering Mathematics Miscellaneous

Engineering Mathematics

  1. The product of two complex numbers (1+ i) and 2 – 5i is
    1. 7 – 3i
    2. 3 – 4i
    3. –3 – 4i
    4. 7 + 3i
Correct Option: A

(1 + i) (2 – 5i) = 2 – 5i + 2i + 5
= 7 – 3i



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