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CBSE Class 12 Math 2018 Solved Paper

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Question : 4
Total: 29
If a*b denotes the larger of ' a ' and ' b ' and if a∘b=(a*b)+3, then write the value of (5) o (10), where * and o are binary operations.
Solution:  
Given that a * b denotes the larger of ‘a’ and ‘b’.
and a o b = (a * b) + 3
⇒ (5) o (10) = (5 * 10) 3 = 10 + 3 = 13
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