SOLUTION: Find the power of i (-i)42 Possible answers: A) (-i)2 B) 1 C) i D) -i E) -1

SOLUTION: Find the power of i (-i)42 Possible answers: A) (-i)2 B) 1 C) i D) -i E) -1

Algebra.Com

Question 728512: Find the power of i
(-i)42
Possible answers:
A) (-i)2
B) 1
C) i
D) -i
E) -1
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
(-i)^42 = (i^3)^(42) = i^(126) = (i^4)^31*i^2 = 1*(-1) = -1
========================
Cheers,
Stan H.
========================
Possible answers:
A) (-i)2
B) 1
C) i
D) -i
E) -1

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