Omar Badran

1. Cộng đồng
2. News and Updates from Khan Academy
3. Content Update: June 2018 New Calculus Courses

Excellent news everyone, thankyou! but noo my WOM %

1. Cộng đồng
2. News and Updates from Khan Academy
3. Content Update: April 2018 (337 new items!! 😱 AP subjects and more!)

Cool! Feel freee to take your time introducing the stats skills to the maths mission haha. My percentages ;)

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2. Study Group
3. Are there videos that teach mathematical proofs?

https://www.khanacademy.org/math/algebra/rational-and-irrational-numbers/proofs-concerning-irrational-numbers/v/proof-that-square-root-of-2-is-irrational