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3 years ago

What is the value of i20+-?

Mathematics

1 answer:

Svetach [21]3 years ago

4 0

i^20+1

i= /2

i^2= -1

i^3= -i

i^4= 1

for every four it repeat itself.

4, 8, 12, 16, 20.

therefore i^20=1

1+1=2

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