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Question

State whether the following statement is true or false.
(1−2i)3+i+(2−3i)3−i=i

A
True
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B
False
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Solution

The correct option is B False
Taking LHS:

(12i)3+i+(23i)3i

=(12i)(3i)+(23i)(3+i)(3+i)(3i)

=17i+97i10

=1014i10

And RHS=1
Hence LHS is not equal to RHS. So above satement is false.


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