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

+1 vote

its dealing with imaginery units.?

imaginary-numbers

asked Jan 31, 2013 in ALGEBRA 2 by anonymous Apprentice

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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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