What is the remainder when is divided by 9?
Answer and explanation
Correct answer: D. 7
- Step 1: Find the pattern of remainders of modulo 9: 7, 4, 1, 7, 4, 1, 7.
- Step 2: The cycle repeats, and .
Answer
7.
Why not the others: 4: it divides the exponent instead.
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