54 Comments

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blackhaert86

I can't believe there is a time where your brain wanted to post this in funny

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j_sins_md

42

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antonioparrott

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kosimazaki997

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mireljitca

I never understant Them funny

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sosayko3

It's practice

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adam8612

What brain ?

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goldenskl

Ah yes derivatives. My old nemesis

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numerus

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nodadnotnow

Parametric equations are the easiest thing i took in school

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