Mathematics
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FredH
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All Questions Answers
Score Newest
answer
52
Is there a math expression equivalent to the conditional ternary operator?
Mar 5, 2019
answer
51
Is there a logarithm base for which the logarithm becomes an identity function?
Mar 8, 2019
answer
37
Does $(n+1)(n-2)x_{n+1}=n(n^2-n-1)x_n-(n-1)^3x_{n-1}$ with $x_2=x_3=1$ define a sequence that is integral at prime indices?
Mar 15, 2019
answer
15
Is there a simple perfect squaring of a 1366 by 768 rectangle?
Mar 8, 2019
answer
8
Integral roots of cubic equation $x^3-27x+k=0$
Apr 1, 2019
answer
8
Triple Pythagorean with $a^2+b^2=c^4$
Mar 17, 2019
answer
7
Is a semigroup with unique right identity and left inverse a group?
Mar 26, 2019
answer
7
Existence of 3 natural numbers that divide each other when squared and have 1 taken away from them
Mar 24, 2019
answer
7
Prove that there are an infinite amount of positive square free integers $n$ such that $n\mid2015^n-1$
Mar 22, 2019
answer
7
The number of elements not in conjugate of a subgroup
Mar 16, 2019
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37
Why does Iron Man/Tony Stark name his suits as "Mark 1, Mark 2, Mark 3"?
27
Why are twins often cast for young roles?
26
Why these credits for Star Trek Into Darkness?
21
Why does deliberately causing a coolant leak in main engineering NOT result in catastrophic destruction of the ship?
20
How was the electromagnet scene filmed?

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