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Solve the following.
The binary operation * : mathbbR × mathbbR → mathbbR is defined as a * b = 2a + b. Find (2 * 3) * 4.
The binary operation $* : \mathbb{R} \times \mathbb{R} \to \mathbb{R}$ is defined as $a * b = 2a + b$.
Find $(2 * 3) * 4$.
Answer
Answer
$2*3 = 2(2)+3 = 7$
$(2*3)*4 = 7*4 = 2(7)+4 = 18$
Final answer: $18$