Find the smallest nonnegative integer for x such that x ≡ 1 (mod 2), x ≡ 2 (mod 3), x ≡ 3 (mod 5), and x ≡ 4 (mod 11).
Solution:
To find the smallest nonnegative integer that satisfies all the given congruences, we can use the Chinese Remainder Theorem (CRT).
First, let's solve the congruences individually:
1. x ≡ 1 (mod 2)
The solutions for this congruence are x = 1, 3, 5, 7, 9, 11, ...
2. x ≡ 2 (mod 3)
The solutions for this congruence are x = 2, 5, 8, 11, 14, ...
3. x ≡ 3 (mod 5)
The solutions for this congruence are x = 3, 8, 13, 18, 23, ...
4. x ≡ 4 (mod 11)
The solutions for this congruence are x = 4, 15, 26, 37, 48, ...
Now, let's find the smallest nonnegative integer that satisfies all the congruences.
By observing the solutions, we can see that the smallest nonnegative integer that satisfies all the congruences is x = 8.
Therefore, the smallest nonnegative integer for x that satisfies all the given congruences is x = 8.