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Question
The value of (2 + i)3 × (2 – i)3 is ______.
Options
– 8
8i
8
125
MCQ
Fill in the Blanks
Solution
The value of (2 + i)3 × (2 – i)3 is 125.
Explanation:
(2 + i)3 × (2 – i)3 = (4 – i2)3
= 53
= 125
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