Correct option is D
Given:
The operation is defined as: a×b = a + b + √ab
We need to find the value of 4×9.
Solution:
Using the given operation definition:
4×9 = 4 + 9 +
= = 6
4×9 = 4 + 9 + 6 = 19
The value of 4×9 is 19.
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