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UP TGT Mathematics Complex Numbers Test Series - Part 1

Find the real part of (5+6i)(7+8i).

Type: MCQ • Marks: 1
Find the real part of (5+6i)(7+8i).
Options
A. -26
B. -6.5
C. -19.5
D. -13
Explanation
Real part=5×7-6×8=-13.
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