Mathematics
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All Questions Answers
Score Newest
question
12
The length of coil winding on cylinder.
Jan 9, 2018
question
6
Number of hand of cards with exactly 3 aces (Unsure if answer is correct)
Dec 22, 2017
question
6
Prove $\sum_{i=1}^{n}i^3=\frac{1}{4} n^2(n+1)^2$ (induction)
Sep 12, 2018
question
6
Find all complex numbers $z$ that satisfy equation $z^3=-8$
Oct 10, 2018
question
5
Prove $ \frac{d^n}{dx^n}\ln(x)=\frac{(n-1)!(-1)^{n-1}}{x^n} $ by induction
Oct 17, 2018
question
5
find $A,B$ in way that $f:A\rightarrow B$ is bijective, when $f(x)=\sqrt{x^2-1}$
Sep 20, 2018
question
5
Prove $\lim_{x\rightarrow -3} 1-4x=13$
Sep 23, 2018
question
5
Proof with induction that $n^2+n$ is even, when $n \in \mathbb{N}$ [duplicate]
Jun 14, 2019
question
4
Proof matrix $A=\begin{bmatrix} 1 & 1 \\ 0 & 1 \end{bmatrix}^n , \text{ when } n \in \mathbb{N}$ [duplicate]
Nov 12, 2018
question
4
Compute the area of a given set
Feb 8, 2018

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