What is the remainder when (7^10 + 3) is divided by 5?
✓ Correct Answer: Option C
The pattern of remainders for powers of 7 divided by 5 is 2, 4, 3, 1 (cycle of 4). For 7^10, the remainder is 7^(10 mod 4) = 7^2 = 4. So, (4 + 3) mod 5 = 7 mod 5 = 2.
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