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

Basically, I had a test yesterday and one of the questions was:

"an odd function f(x) has a period τ=7. What is the value of f(75)-f(-30)"

2. Relevant equations

n/a

3. The attempt at a solution

I used periodicity to reduce

= f(75-70) + f(30-28)

= f(5) + f(2)

What else could I have done?

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# Homework Help: Trig Functions periodicity

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