Let * be a binary operation defined by a * b = 3a + 4b − 2. Find … - Vidyadip

Question

Let * be a binary operation defined by a * b = 3a + 4b − 2. Find 4 * 5.

✓

Answer

Given: a * b = 3a + 4b - 2
Here,
4 * 5 = 3(4) + 4(5) - 2
= 12 + 20 - 2
= 30

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