Question 1184925
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(1) Find the derivative of the function and evaluate the derivative at x=0 to find the slope of the tangent at x=0.<br>
(2) Evaluate the function at x=0 to find the coordinates of the point of tangency.<br>
(3) Use the slope from (1) and the point from (2) in the point-slope form of a line to get the equation of the tangent.<br>
We can't do the work for you because we aren't sure what the function is.  It looks like<br>
4/x^2+2 = {{{4/x^2+2}}}<br>
but you probably meant<br>
4/(x^2+2) = {{{4/(x^2+2)}}}<br>