Posted by Anonymous on Thursday, August 30, 2012 at 12:55pm.
(a) By graphing the function
f(x) = (cos 2x − cos x)/x2
and zooming in toward the point where the graph crosses the y-axis, estimate the value of
x → 0
(b) Check your answer in part (a) by evaluating
for values of x that approach 0. (Round your answers to six decimal places.)
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