# Find maxima of the following expression using calculus #(2x-sin2x)/x^2# ?

##### 1 Answer

#### Explanation:

Given

the stationary points are determined solving for

or

with solutions

Here

Now testing in the range

we will obtain

and for

there are infinite minima and maxima for

Note:

We have obviate the limit determination for

For qualification justification see

https://socratic.org/questions/if-f-x-x-8-9-x-4-7-x-3-7-what-are-the-local-minima-and-maxima-of-f-x#300548

Attached the plot of