@khanacademy Funny, the Sandwich Theorem is our fave too. #NationalSandwichDaypic.twitter.com/PqhXi75jtW
Celebrate #NationalSandwichDay by snacking on the "Sandwich Theorem," one of Sal's favorite theorems in calculus:http://bit.ly/SandwichThm
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@khanacademy I wish your service was around when I was stumped in#Calculus.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@khanacademy so queria agradece voces por esse projeto, estou apredendo muita coisas.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@khanacademy sqeezing sinx/× into 1..with bread and butter... cool !Thanks. Twitter will use this to make your timeline better. UndoUndo
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