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bb_823
  • Member for 2 years, 2 months
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7 votes
1 answer
171 views

Show the existence of family of sets

4 votes
2 answers
330 views

Conflicting results for $\int\frac{|x+1|}{x}\,\mathrm dx$

3 votes
5 answers
151 views

Multiple cases within an integral after a $u$-substitution

3 votes
1 answer
502 views

Proof of Bertrand test of convergence

3 votes
2 answers
136 views

Area Between Hyperbola and its Tangent Lines

2 votes
1 answer
141 views

Prove that if $A^2=I$ for matrix $A_{3\times 3}$, then $A$ has a trace of either $-1$ or $1$

2 votes
1 answer
58 views

Showing the convergence of improper integral

2 votes
2 answers
142 views

Solving an indefinite integral using integration by parts

1 vote
2 answers
428 views

Find the $\ker(T)$ and $Im(T)$ and their bases, of $T:M_{2\times2}\rightarrow M_{2\times2}$, where $T(A)=AB-BA$

1 vote
1 answer
179 views

Find the matrix transformation of a linear transformation $T: M_{2\times2}(\mathbb{R})\rightarrow\mathbb{R}$

1 vote
1 answer
72 views

Solving an indefinite integral: $\int{\frac{dx}{\sin^2(x)+5\cos^2(x)}}$ [duplicate]

1 vote
1 answer
92 views

Limit of a definite integral as $n\to\infty$

1 vote
2 answers
633 views

Equation of a line passing through a point and perpendicular to another line

1 vote
1 answer
110 views

Find the area bounded by cissoid and its asymptote $x=2a$

1 vote
1 answer
46 views

How to find a function approaching another function at an assymptote

1 vote
1 answer
136 views

Solve a system of set equations

1 vote
1 answer
52 views

Finding an $\mathcal{A}$-invariant subspace of $\mathbb{R}^2$

1 vote
2 answers
154 views

Show that ODE doesn’t have a solution

1 vote
0 answers
48 views

Contradiction on theorem of convergence for impoper integrals

1 vote
2 answers
192 views

Point on parabola satisfying a condition

0 votes
1 answer
90 views

Integration of a parametric function

0 votes
2 answers
119 views

Quadratic form and a matrix of a surface in $\mathbb{R}^2$

0 votes
5 answers
434 views

Shortest distance from point to a curve and Estimation of error of an incorrect approach

0 votes
1 answer
46 views

Divisibility of characteristic polynomial

0 votes
1 answer
108 views

If $G(x)=\int{g(x)dx}$ then what is $\tilde{G}(x)=\int{|g(x)|dx}$

0 votes
1 answer
54 views

Is $a\in A$ and $\{a\}\subset A$?

0 votes
3 answers
151 views

Is $A\times A^2=A^3$?

0 votes
1 answer
43 views

Composition of relations of an image. Prove: $(\rho_2\circ\rho_1)(A)=\rho_2(\rho_1(A))$

0 votes
1 answer
95 views

Domain of an ODE

0 votes
1 answer
219 views

Bounds of arc length of a curve