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50m
revised What is the probability that 5 randomly chosen cards in a deck add up to 40 or greater?
edited title
58m
revised What is the probability that 5 randomly chosen cards in a deck add up to 40 or greater?
edited tags
15h
revised How to do this triangle question?
added 326 characters in body
1d
revised Hessian-Matrix positive definite $\iff$ $a$ local minimum?
added 2 characters in body
1d
revised Sum of zeros of $P(x)$
edited tags
May
4
revised 5 pears and 1 apple cost as much as 2 pears and 2 apples. If each apple costs $0.75,find the total cost of 100 pears and 450 apples.
edited tags
Apr
30
revised Probability problem without the usual information
deleted 3 characters in body; edited title
Apr
25
revised Convergence: infinite series
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Apr
25
revised Is $\sum_{k=-\infty}^{0}f(-k)=\sum_{k=0}^{\infty} f(k)$ always?
edited tags
Apr
25
revised Evaluation of $ \int_{0}^{\frac{\pi}{4}}\left(\cos 2x \right)^{\frac{11}{2}}\cdot \cos xdx $
added 692 characters in body
Apr
25
revised Evaluation of $ \int_{0}^{\frac{\pi}{4}}\left(\cos 2x \right)^{\frac{11}{2}}\cdot \cos xdx $
added 692 characters in body
Apr
25
revised Textbook +reference book in complex analysis
added 11 characters in body
Apr
25
revised A math contest question related to Ramsey numbers
edited tags
Apr
25
revised how to prove that a relation is antisymmetric?
added 7 characters in body
Apr
25
revised how to prove that a relation is antisymmetric?
added 22 characters in body
Apr
25
revised how to prove that a relation is antisymmetric?
added 6 characters in body
Apr
25
revised Why is $\sinh$ often pronounced “shine”?
edited tags
Apr
24
revised Are “Transition Books” (Spivak/Apostol/Courant) really necessary?
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Apr
24
revised General term of the sequence $2, 7, 16, 30, 50, 77, 112, 156$
added 482 characters in body
Apr
24
revised General term of the sequence $2, 7, 16, 30, 50, 77, 112, 156$
added 3 characters in body; edited title