ACT Math Practice Question #2001 (Hard (540)) | Test Citadel
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ACT Math Difficulty: Hard (540)

Digital ACT Math Practice Question #2001

Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.

Given that i = sqrt(-1), what is the value of i^47?
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47 mod 4 = 3 -> i^3 = -i.

Masterclass Solution & Distractor Trap Analysis

Divide the exponent by 4: 47 = 4 * 11 + 3. i^47 = i^3 = -i....

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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