- #1

thedude36

- 30

- 0

http://i.imgur.com/AxApogj.png

[itex]\phi[/itex](t) - [itex]\psi[/itex](t) =∫

_{0}

^{t}2s[[itex]\phi[/itex](t) - [itex]\psi[/itex](t)] ds

|[itex]\phi[/itex](t) - [itex]\psi[/itex](t)| =|∫

_{0}

^{t}2s[[itex]\phi[/itex](t) - [itex]\psi[/itex](t)] ds| [itex]\leq[/itex] ∫

_{0}

^{t}2s|[[itex]\phi[/itex](t) - [itex]\psi[/itex](t)]| ds , with t>0

I have no idea where to start. Mostly, I am unsure as to why pulling the 2s out will make it larger than the initial absolute value. Could anyone help?