# Math Help - intercept

1. ## intercept

Find the exact value of the area under the first arch of f(x) = x sin(x). The first arch is between x = 0 and the first positive x-intercept.
I dont know how i would get the first positive x intercept i know that sine is a wave and the x is going to change the wave by making it bigger but im stuck, please help

2. Originally Posted by acosta0809
Find the exact value of the area under the first arch of f(x) = x sin(x). The first arch is between x = 0 and the first positive x-intercept.
I dont know how i would get the first positive x intercept i know that sine is a wave and the x is going to change the wave by making it bigger but im stuck, please help
Solve $x \sin x = 0$.

Case 1: $x = 0$.

Case 2: $\sin x = 0$.