# What is the local max of f(x) =x sin x?

##### 1 Answer

Mar 18, 2018

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https://www.wolframalpha.com/input/?i=max(xsin(x))

#### Explanation:

A maxima at point

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The following lines can only be calculated by approximation e.g. a calculator.

This is a max

This is a max

Checking by drawing the graph

graph{xsin(x) [-20, 20, -20, 20]}