if a@b = a * b^(1/2) then 2@9 = ?  Choose the correct option
A) 2	B) 6	C) 3	D) 8	E) 4
a@b = a * b^(1/2)   2@9 = 2*9^(1/2) = 2*3= 
<gadget id="calculator">2*3</gadget>
<output>6</output>
6   Correct Option: 6
<result>B</result>
if a@b = a * b^(1/2) then 2@9 = ?