List questions from substitution

Published on 16 Nov 2019 - 18:13

116

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Validity of solution using substitution for finding maximum value

Published on 19 Nov 2019 - 9:31

2.5k

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How $dxdy$ becomes $rdrd\theta$ during integration by substitution with polar coordinates

Published on 27 Mar 2026 - 16:54

38

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Use a suitable substitution to show these integrals are equal

Published on 26 Nov 2019 - 22:20

170

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Solving $a_{n+1}=(n+1)a_n$ by recurrence relations and characteristic polynomials

Published on 29 Nov 2019 - 6:34

58

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Solving PDE using the characteristic method

Published on 29 Nov 2019 - 12:47

40

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Prove that $a^2b^2+b^2c^2+a^2c^2\leq 3$.

Published on 01 Dec 2019 - 6:57

25

Views

Proving separable solution to a heat-type equation contains a 1st ord diff eq and 2nd ord diff eq?

Published on 05 Dec 2019 - 15:10

107

Views

Undoing the trig substitution

Published on 05 Dec 2019 - 20:41

234

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Efficient method for minimizing $f = x^4 + 2y^4 + 3z^4$ over the unit sphere.

Published on 05 Dec 2019 - 21:29

195

Views

How to compute $\int \frac{16 x^3 - 42 x^2+2x}{\sqrt{-16x^8+112x^7-204x^6+28x^5-x^4+1}}\,\mathrm dx.$

Published on 05 Dec 2019 - 22:06

35

Views

Integrating $\int \frac{1}{x(\ln x)^2}\,dx$

Published on 06 Dec 2019 - 2:50

72

Views

Difference between the two substitution methods in integration

Published on 07 Dec 2019 - 15:01

112

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Legality of using substitution $u=nx$ in an integral

Published on 07 Dec 2019 - 21:01

255

Views

Rewriting a boolean expression using different literals

Published on 09 Dec 2019 - 0:16

List Question

Solving a $3\times3$ system of linear equations.

Validity of solution using substitution for finding maximum value

How $dxdy$ becomes $rdrd\theta$ during integration by substitution with polar coordinates

Use a suitable substitution to show these integrals are equal

Solving $a_{n+1}=(n+1)a_n$ by recurrence relations and characteristic polynomials

Solving PDE using the characteristic method

Prove that $a^2b^2+b^2c^2+a^2c^2\leq 3$.

Proving separable solution to a heat-type equation contains a 1st ord diff eq and 2nd ord diff eq?

Undoing the trig substitution

Efficient method for minimizing $f = x^4 + 2y^4 + 3z^4$ over the unit sphere.

How to compute $\int \frac{16 x^3 - 42 x^2+2x}{\sqrt{-16x^8+112x^7-204x^6+28x^5-x^4+1}}\,\mathrm dx.$

Integrating $\int \frac{1}{x(\ln x)^2}\,dx$

Difference between the two substitution methods in integration

Legality of using substitution $u=nx$ in an integral

Rewriting a boolean expression using different literals

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