Mark the correct alternative in each of the following:
If a binary operation * is defined on the set Z of integers as a * b = 3a – b, then the value of (2 * 3) *4 is
Given that a * b = 3a – b
To calculate (2 * 3) * 4
⇒ 2 * 3 = 3.2 – 3 = 3
⇒ (2 * 3) * 4 = 3 * 4
⇒ 3 * 4 = 3.3 – 4
= 5