If a is an integer, prove that (14a +3,21a + 4) 1

See explanation below.

Step-by-step explanation:

To prove that the greatest common divisor of two numbers is 1, we use the Euclidean algorithm.

1. In this case, and applying the algorithm we would have:

(14a + 3, 21a + 4) = (14a + 3, 7a + 1)  = (1, 7a + 1) = 1

2. Other way of proving this statement would be that we will need to find two integers x and y such that 1 = (14a + 3) x + (21a + 4) y

Let's make x = 3  and y = -2

Then we would have:

Therefore, (14a + 3, 21a + 4) = 1

table 3 represents a direct variation function. : )

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