# Question about an example problem with transfer function response

1. Apr 26, 2016

### kenok1216

whu at w=100 the effect of c0 and c2 will not count
also w=200 the effect of c1 and c0 will not count???

2. Apr 26, 2016

### Baluncore

Is this homework ?

3. Apr 26, 2016

### BvU

Well, it's a worked out example and OP wonders about the coefficients. The reason is that this is all about linear systems, and one property of a linear system is that you can write the total response as the sum of responses to the individual frequency components in the input.
And an input of a particular $\omega$ can only lead to a response with that same $\omega$ plus its very own $\theta$.

4. Apr 26, 2016

got it thank