If the binary operation *, defined on Q, is defined as a * b = 2a + b – InterviewSolution

1.

If the binary operation , defined on Q, is defined as a b = 2a + b – ab, for all a, b ∈ Q, find the value of 3 * 4 .

Answer»

Given binary operation is a*b = 2a + b – ab

∴ 3* 4 = 2 x 3 + 4 – 3

⇒ 4 x 3* 4 = –2

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