Mathematics
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George S
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question
2
Suppose A, B and C are sets such that #A=#B. Is it true that #(A x C) =#(B x C)? If it is, prove that. [duplicate]
Dec 7, 2016
question
2
Find the tangent plane to the surface with parametric equations $x=u^2, y=v^2, z=u+2v$ at the point $s(1, 1, 3)$.
Nov 20, 2017
question
2
Solve the initial value problem $y′=(x+y−2)^2$?
Jan 31, 2018
question
2
Understanding of Material Implication
Feb 9, 2018
question
2
Calculating the sample mean and sample standard deviation from confidence interval
Feb 26, 2018
question
1
A set $A$ is given and a relation $R$ is defined on $A$. Determine whether each is an equivalence relation. Be sure to prove your answer.
Oct 27, 2016
question
1
Find all solutions $ x $in $Z$ to the simultaneous congruences for $x=1 (mod 2)$ and $x=2 (mod 3)$
Nov 17, 2016
question
1
Which of the following sets are closed under addition?
Nov 25, 2016
question
1
Consider the function f : R-->R defined by f(x) =x^7+x+1. Show that f has an inverse
Dec 5, 2016
question
1
Suppose $A$ and $B$ are sets with $\#A=\#\mathbb{Z}$ and $\#B=\#\mathbb{Z}$. (a) Prove $\#(A\cup B)=\#\mathbb{Z}$. (b) Is $\#(A\cap B)=\#\mathbb{Z}$?
Dec 20, 2016

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