User john doe

12 votes

3 answers

395 views

Help solving $\int \:\frac{dx}{x+\sqrt{9x^2-9x+2}}$

asked Jan 27, 2021 at 8:22

5 votes

5 answers

174 views

Equation of a circle that passes through $(4,3)$ and which, touches the $y$ axis and another given circle

asked Mar 18, 2023 at 22:54

4 votes

2 answers

99 views

Solving a Riccati equation - doesn't fit into any category I tried until now

asked May 17, 2021 at 13:29

4 votes

3 answers

375 views

Solving a third order Euler-Cauchy ODE

asked Jul 12, 2020 at 15:53

3 votes

2 answers

43 views

Second-order linear homogenous ODE - I can't see any substitution!

asked May 23, 2021 at 16:23

3 votes

3 answers

48 views

Second order linear non-homogenous ODE - checking my solution

asked May 24, 2021 at 9:05

3 votes

1 answer

102 views

Using beta reduction on $ \lambda y. ( \lambda x. \lambda y. y x)(\lambda z. y z)$

asked Jul 12, 2023 at 17:01

2 votes

1 answer

30 views

$(\lambda z. zy)(\lambda z. zy)$ - reducing using $\beta$ reduction and $\alpha$ conversion

asked Jul 10, 2023 at 14:20

2 votes

1 answer

359 views

Calculating triple integral between paraboloid and plane

asked Jun 24, 2021 at 14:00

2 votes

1 answer

93 views

Solving a second order ODE of the form $y'' + P(x)y' + Q(x)y = f(x)$, given one part of the solution

asked Aug 22, 2021 at 8:21

2 votes

0 answers

103 views

Solving a second-order non-linear ODE (In search of an easier way)

asked Aug 22, 2021 at 16:22

2 votes

0 answers

38 views

Solving a 2nd order autonomous ODE problem - checking solution

asked Aug 25, 2021 at 22:31

2 votes

2 answers

135 views

Linear Diophantine equation with three variables and a condition

asked Oct 23, 2021 at 21:29

2 votes

1 answer

690 views

System of three linear congruences with three variables

asked Nov 3, 2021 at 13:22

2 votes

0 answers

67 views

Triple integral - why do I have to divide the area into two sub-areas?

asked Jun 9, 2021 at 17:15

2 votes

2 answers

60 views

Triple integral - cylindrical coordinates problem

asked Jun 22, 2021 at 14:59

2 votes

3 answers

65 views

Second order non linear ODE - hard to solve integral makes me think I need a different substitution

asked May 17, 2021 at 14:36

2 votes

2 answers

85 views

Solve second order linear ODE if particular solution of the homogenous part is known

asked Jul 14, 2020 at 16:33

2 votes

2 answers

88 views

Reducing the degree of an ODE by substitution question

asked Aug 20, 2020 at 10:16

2 votes

3 answers

1k views

Calculate limit using Maclaurin series [duplicate]

asked Jan 16, 2021 at 10:40

1 vote

1 answer

94 views

Euler ODE - particular solution problem

asked Jul 17, 2020 at 22:25

1 vote

0 answers

778 views

Binomial probability problem - possible fault in workbook

asked Jun 4, 2020 at 10:57

1 vote

2 answers

74 views

Complex number inequality plot - modulus of a fraction

asked Oct 26, 2020 at 22:19

1 vote

1 answer

78 views

Complex number inequality - plotting the values

asked Oct 27, 2020 at 15:20

1 vote

2 answers

46 views

Third order non linear ODE - can anyone help me spot my error?

asked May 18, 2021 at 10:55

1 vote

1 answer

39 views

Solving a second-order linear ODE

asked May 23, 2021 at 14:54

1 vote

2 answers

2k views

Double integrals - when do I need to split the area of integration?

asked Jun 16, 2021 at 7:56

1 vote

0 answers

55 views

A double integral problem - polar coordinates substitution: $\int\int\arctan{\frac{y}{x}}dxdy$

asked Jun 21, 2021 at 1:00

1 vote

2 answers

116 views

Determine the value of the double integral (lemniscate for $x \ge 0$

asked Jun 21, 2021 at 14:01

1 vote

0 answers

22 views

Volume via double integral - dividing the section for positive $z$ and negative $z$

asked Jun 14, 2021 at 14:57

Stack Exchange Network

67 Questions

Help solving $\int \:\frac{dx}{x+\sqrt{9x^2-9x+2}}$

Equation of a circle that passes through $(4,3)$ and which, touches the $y$ axis and another given circle

Solving a Riccati equation - doesn't fit into any category I tried until now

Solving a third order Euler-Cauchy ODE

Second-order linear homogenous ODE - I can't see any substitution!

Second order linear non-homogenous ODE - checking my solution

Using beta reduction on $ \lambda y. ( \lambda x. \lambda y. y x)(\lambda z. y z)$

$(\lambda z. zy)(\lambda z. zy)$ - reducing using $\beta$ reduction and $\alpha$ conversion

Calculating triple integral between paraboloid and plane

Solving a second order ODE of the form $y'' + P(x)y' + Q(x)y = f(x)$, given one part of the solution

Solving a second-order non-linear ODE (In search of an easier way)

Solving a 2nd order autonomous ODE problem - checking solution

Linear Diophantine equation with three variables and a condition

System of three linear congruences with three variables

Triple integral - why do I have to divide the area into two sub-areas?

Triple integral - cylindrical coordinates problem

Second order non linear ODE - hard to solve integral makes me think I need a different substitution

Solve second order linear ODE if particular solution of the homogenous part is known

Reducing the degree of an ODE by substitution question

Calculate limit using Maclaurin series [duplicate]

Euler ODE - particular solution problem

Binomial probability problem - possible fault in workbook

Complex number inequality plot - modulus of a fraction

Complex number inequality - plotting the values

Third order non linear ODE - can anyone help me spot my error?

Solving a second-order linear ODE

Double integrals - when do I need to split the area of integration?

A double integral problem - polar coordinates substitution: $\int\int\arctan{\frac{y}{x}}dxdy$

Determine the value of the double integral (lemniscate for $x \ge 0$

Volume via double integral - dividing the section for positive $z$ and negative $z$