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Class 12 Mathematics Relations and Functions Binary operationsEasy

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For the operation (a\ast b=a+2b), find the value of (3\ast 4).

Answer and explanation

Correct answer: (11)

Step 1: The rule is (a\ast b=a+2b). Step 2: (3\ast4=3+2\cdot4=11). Step 3: Do not interchange the positions of (a) and (b).

Related tags

Operation Value Substitution Binary Operation Binary Operations Relations And Functions Mathematics Class 12 Mcq

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