Given that a*b means square root a+4b , where the positive root is taken, determine the values of 1*2

Given that means square root a+4b Then the value of

Solution:

Given that, means the square root of a + 4b , where the positive root is taken ,  

We have to determine the values of

Now, according to given information,  

Hence, the value of

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step-by-step explanation:

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