this post was submitted on 25 May 2024
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Daily Maths Challenges

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Share your cool maths problems.



Complete a challenge:


Post a challenge:


Feel free to contribute to a series by DMing the OP, or start your own challenge series.

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  • Show that cosθ=(u⋅v)/(|u||v|) for 2D vectors u and v.

(it is quite hard to come up with these challenges, so if you got any ideas, please post them)

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[–] zkfcfbzr 2 points 1 month ago (1 children)
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[–] [email protected] 2 points 1 month ago