what is symmetry arguments? (1 Viewer)

[WEMG]

I don't understand what this question means by using symmetry arguments.


Edit: sorry, you are going to have to click the link because I don't know the code..

 

[Omnipotence]

I think it means evaluate the area between e.g. 1/3 and 0. Then multiply by two since its symmetrical.

 

[ohexploitable]

Stuff like that.

 

[jyu]

For the second one, look at the graph of cos-1, you'll see the definite integral = pi/2 (3/4 + 3/4) = 3pi/4