The value of (1+ i )^7 (1-1)^7 is - Vidyadip

MCQ

The value of $(1+ i )^7 \times(1-1)^7$ is

A
-16
B
16 i
C
64
✓
128

✓

Answer

Correct option: D.

128

(D)
$(1+ i )^7(1- i )^7=\left(1- i ^2\right)^7=2^7=128$

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