Which of the following is equivalent to the complex number i^6?

-1

Step-by-step explanation:

i is √-1

i^2 is -1

i^3 is -i

i^4 is 1

This cycle repeats itself every 4 powers

so i^6 is -1

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step-by-step explanation:

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5