User baxx

6 votes

4 answers

174 views

Find n so that the following converges $\int_1^{+ \infty} \left( \frac{nx^2}{x^3 + 1} - \frac 1 {13x + 1} \right) dx$

asked Jul 20, 2017 at 16:53

6 votes

1 answer

157 views

convergent or divergent $\int_{-4}^{1} \frac{dz}{(z + 3)^3}$

asked Jul 21, 2017 at 13:30

4 votes

4 answers

4k views

Estimate the error that results when $\sqrt{1 + x}$ is replaced by $1 + \frac{1}{2}x$ if $|x| < 0.01$

asked Jul 23, 2017 at 15:59

3 votes

2 answers

508 views

How to change the value of $a$ in a Taylor series yet still get the correct approximation?

asked Jul 23, 2017 at 22:12

3 votes

5 answers

203 views

Prove $\lim_{x \to 1} \frac{x^b - 1}{x - 1} = b$

asked Jul 5, 2017 at 23:17

3 votes

2 answers

192 views

Basic Logarithm question - I can't get both answers from quadratic

asked May 19, 2015 at 12:35

3 votes

2 answers

149 views

Basic simultaneous equation with logarithms

asked May 13, 2015 at 1:34

3 votes

4 answers

133 views

Finding the first $n$ digits in a multiplication

asked Jul 29, 2016 at 12:30

2 votes

0 answers

67 views

How to prove that a triangle can be rotated around a convex polygon

asked Sep 17, 2016 at 23:58

2 votes

1 answer

53 views

Prove $[a,b] + [c, d) = [ a+c, b+d)$

asked Feb 25, 2017 at 11:24

2 votes

5 answers

3k views

Fundamental theorem of calculus, Taylor's theorem

asked Jul 22, 2017 at 20:17

2 votes

1 answer

181 views

Series of binomial coefficient denominators

asked Aug 30, 2018 at 10:56

2 votes

1 answer

160 views

Optimisation - first order necessary conditions, directions, Chong & Zak Q. 6.16

asked Apr 26, 2019 at 0:43

2 votes

1 answer

177 views

Simplex Algorithm, determining Two Phase is required and choice of artificial variables

asked Feb 22, 2019 at 0:11

2 votes

5 answers

1k views

Find the limit $ \lim_{x \to (\frac{1}{2})^{-}} \frac{\ln(1 - 2x)}{\tan \pi x} $

asked Jul 19, 2017 at 12:39

1 vote

1 answer

601 views

Example of KKT conditions using single variable, how to set up

asked Apr 30, 2019 at 14:00

1 vote

0 answers

35 views

Simplex method, amount to reduce basic by when non-basic is entered.

asked Feb 23, 2019 at 18:53

1 vote

2 answers

154 views

Basic property of kronecker delta $( A \otimes B)(A^{-1} \otimes B^{-1})$

asked Mar 25, 2019 at 21:15

1 vote

1 answer

308 views

Fixed points of a system of differential equations

asked Nov 24, 2018 at 15:54

1 vote

1 answer

92 views

How to evaluate the Jacobian for a system of differential equations when the terms aren't constants

asked Nov 24, 2018 at 17:23

1 vote

1 answer

711 views

Evaluate the integral $\int_{\pi/4}^{3\pi/4} x \cdot \cot(x) \cdot \csc(x) \mathop{dx}$

asked Jul 11, 2017 at 19:12

1 vote

1 answer

65 views

Prove directly that $xy - 1$ cannot be resolved into a product of two linear factors

asked Sep 3, 2016 at 7:36

1 vote

2 answers

81 views

$ 1 - \cos 2 \Theta$ can be rewritten as $1 - \left( 1 - 2 \sin^2 \Theta\right)$ - I don't understand why though

asked Oct 11, 2015 at 11:52

1 vote

1 answer

55 views

Set theory, is this question too ambiguously worded to answer? $|A \cap B \cap C|$

asked Oct 14, 2015 at 21:32

1 vote

3 answers

756 views

Factorize $6x^2 -5x -14 = 0$

asked Oct 14, 2014 at 21:37

0 votes

1 answer

79 views

Inequalities and equations - creating sets from quadratic equations.

asked Oct 16, 2014 at 11:29

0 votes

1 answer

3k views

How to work out following problem -> "sum of the multiples of 6 less than 100"

asked Feb 1, 2015 at 19:58

0 votes

1 answer

2k views

Series problem - finding the a and d values from given terms

asked Feb 2, 2015 at 15:40

0 votes

1 answer

74 views

Differentiation - basic areas - calculating the area of grid given line length

asked Oct 28, 2015 at 21:09

0 votes

1 answer

64 views

GCD of a series of integers with integer coefficients [closed]

asked Sep 10, 2016 at 17:07

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45 Questions

Find n so that the following converges $\int_1^{+ \infty} \left( \frac{nx^2}{x^3 + 1} - \frac 1 {13x + 1} \right) dx$

convergent or divergent $\int_{-4}^{1} \frac{dz}{(z + 3)^3}$

Estimate the error that results when $\sqrt{1 + x}$ is replaced by $1 + \frac{1}{2}x$ if $|x| < 0.01$

How to change the value of $a$ in a Taylor series yet still get the correct approximation?

Prove $\lim_{x \to 1} \frac{x^b - 1}{x - 1} = b$

Basic Logarithm question - I can't get both answers from quadratic

Basic simultaneous equation with logarithms

Finding the first $n$ digits in a multiplication

How to prove that a triangle can be rotated around a convex polygon

Prove $[a,b] + [c, d) = [ a+c, b+d)$

Fundamental theorem of calculus, Taylor's theorem

Series of binomial coefficient denominators

Optimisation - first order necessary conditions, directions, Chong & Zak Q. 6.16

Simplex Algorithm, determining Two Phase is required and choice of artificial variables

Find the limit $ \lim_{x \to (\frac{1}{2})^{-}} \frac{\ln(1 - 2x)}{\tan \pi x} $

Example of KKT conditions using single variable, how to set up

Simplex method, amount to reduce basic by when non-basic is entered.

Basic property of kronecker delta $( A \otimes B)(A^{-1} \otimes B^{-1})$

Fixed points of a system of differential equations

How to evaluate the Jacobian for a system of differential equations when the terms aren't constants

Evaluate the integral $\int_{\pi/4}^{3\pi/4} x \cdot \cot(x) \cdot \csc(x) \mathop{dx}$

Prove directly that $xy - 1$ cannot be resolved into a product of two linear factors

$ 1 - \cos 2 \Theta$ can be rewritten as $1 - \left( 1 - 2 \sin^2 \Theta\right)$ - I don't understand why though

Set theory, is this question too ambiguously worded to answer? $|A \cap B \cap C|$

Factorize $6x^2 -5x -14 = 0$

Inequalities and equations - creating sets from quadratic equations.

How to work out following problem -> "sum of the multiples of 6 less than 100"

Series problem - finding the a and d values from given terms

Differentiation - basic areas - calculating the area of grid given line length

GCD of a series of integers with integer coefficients [closed]