Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
1. Equations & Inequalities
Powers of i
Struggling with College Algebra?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Simplify the power of i.
i1003
A
i
B
−1
C
−i
D
1

1
Understand that the imaginary unit 'i' is defined as the square root of -1, and powers of 'i' cycle every four terms: i, -1, -i, 1.
To simplify i^{1003}, determine the remainder when 1003 is divided by 4, since the powers of 'i' repeat every four terms.
Calculate 1003 mod 4. This will give you the position in the cycle of powers of 'i'.
Based on the remainder, identify the corresponding power of 'i' from the cycle: i, -1, -i, 1.
Use the identified power of 'i' to express i^{1003} in its simplest form.
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