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Mathematics 13 Online
OpenStudy (junyang96):

Let f(x)=x^2+1, find and simplify f(t)[u(t+1)-u(t-3)]

OpenStudy (anonymous):

What's u? :/

OpenStudy (junyang96):

Heaviside function

OpenStudy (anonymous):

<whistles> ... never heard of that haha

OpenStudy (junyang96):

Don't matter. It's not widely used.

OpenStudy (anonymous):

Looks like it's as simplified as it could get. What is the simplified form supposed to look like?

OpenStudy (junyang96):

Exactly! Never mind I'll consult my tutor. Thanks

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