(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Hey so this is a really trivial question.

f(t) = { 0, 0<= t < pi

{ -sin3t, t>=pi

Just having trouble properly shifting this!

3. The attempt at a solution

f(t) = -u_{pi}(t)sin(3t)

= -u_{pi}(t)sin[3(t-pi+pi)]

= u_{pi}(t)sin[3(t-pi+pi)]

How do I take the +pi out?

I know it should end up as:

u_{pi}(t)sin[3(t-pi)]

I just don't really understand how from my last step.

thanks for reading!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Heaviside/step function question

**Physics Forums | Science Articles, Homework Help, Discussion**