MCR

$9^\frac{1}{2}\times9^\frac{1}{2}=$

$3^2(\frac{1}{2})\times3^2(\frac{1}{2})$

 it is 3^2x1/2, not 3^2 and then x1/2

$3\times3$

$9$

what is 9^1/2 x 9^1/2   

9^1/2 represents the square root of 9 

So sqrt(9) x sqrt(9) = 9  

In general terms sqrt(n) x sqrt(n) = n  

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