Karmanyaah Malhotra

I am also learning precalculus here though I don't know if it is complete now since this thread is 2 years old.

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One good thing about the older mastery system was that after practicing the earlier skills from a course, it took a some time to complete the course; then if it was mastered we know that we have re...

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3. Update (May 2018): New Unit Mastery [beta testing]