Is your browser MathML enabled?
y = 1 x If you can see an equation to the LEFT of this sentence then your browser is MathML enabled. The equation to the LEFT should look like one of the two pictures on the right. Picture_1
Picture of y = square root of the reciprocal of x 		Picture_2
Picture of y = the square root of the reciprocal of x

In FF the y and x are blue, the equal sign is green and the number 1 and the square root symbol are black. If the square root symbol does not stretch down to include the denominator of the fraction, you need to install STIX BETA Fonts.

If there is no square root symbol in the equation in column 1, then MathPlayer must be downloaded. Note: In IE equation is black and white.