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A solid spherical ball is placed carefully on the edge ...
Level 5 in Classical Mechanics
\[ m^ 2 = 2^3 \times 3^4 \times 5^6. \]
Which of the following is true ...
by Chung Kevin
Level 2 in Algebra
It is the case that
...
Level 5 in Calculus
The polynomial
\[ f(x) = 8x^4 - 24x ^3 + 27 x^2 - bx + c \]
has 4 real ...
by Calvin Lin
Level 5 in Algebra
Find a positive integer value of \(x\) which
...
by Mục Xiên
Level 2 in Algebra
On the circumference of a circle of radius \(r\), two points are chosen with a uniform ...
by Julian Poon
Level 3 in Combinatorics
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