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Prove: 1*-1=-1(1 multiplied by minus 1 equals minus 1)

Prove:
1*-1=-1(1 multiplied by minus 1 equals minus 1)

Grade:11

1 Answers

Saurabh Singh
askIITians Faculty 49 Points
8 years ago
i will try to solve this using imaginary number
we know i2=-1 and i4=1
so we will make use of the cyclic power of i

now 1*(-1) = i4*(i2) = i4+2=i6= -1

Hence Proved
Thanks & Regards
Saurabh Singh,
askIITians Faculty
B.Tech.
IIT Kanpur

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