C. i / i
ExplanationStep 1: Powers of i repeat after every 4 powers. Step 2: i⁹ = i⁸×i = 1×i = i. Step 3: Remembering i⁴ = 1 makes powers easy.
Step 1: i की powers हर 4 पर repeat होती हैं। Step 2: i⁹ = i⁸×i = 1×i = i। Step 3: i⁴ = 1 याद रखने से powers आसान होती हैं।
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