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Simplify i^20-i^10.!!!!!!!!!!!!!!!!!!!!!!!!!

+1 vote

its dealing with imaginery units.?

asked Jan 31, 2013 in ALGEBRA 2 by anonymous Apprentice

1 Answer

+1 vote

= i20 - i10

Recall: Complex numbers formula is  i = √(-1) or i2 = -1

= (i2)10 - (i2)5

=(-1)10 - (-1)5

= (1) - (-1)

= 1 + 1 = 2

There fore i20 - i10 = 2

answered Jan 31, 2013 by richardson Scholar

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