List questions from substitution

Published on 18 Mar 2017 - 18:45

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$f(\frac{2\pi}{7})+f(\frac{4\pi}{7})+f(\frac{6\pi}{7})=1$

Published on 19 Mar 2017 - 10:56

125

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Determine the minimum value of the expression, for $a,b$ , $c$ $\in\ \textbf{R}^+$

Published on 29 Mar 2026 - 11:02

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If $x^2 + y^2 + z^2 + 2xyz = 1$ then $x+ y+ z \leq \frac{3}{2}?$

Published on 29 Mar 2026 - 9:11

119

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Finding $\int\frac{2x^3-1}{x^6-x^4+2x^3-2x^2-x+1}dx$

Published on 20 Mar 2017 - 4:57

156

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Find all roots of the equation $2x^3+x^2+75x-81=0$

Published on 28 Mar 2026 - 1:07

103

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if such $a^2+b^2+c^2+1=d+\sqrt{a+b+c-d}$ show $2(a+b+c)=3$

Published on 21 Mar 2017 - 5:17

287

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Substitution into Partial Differential Equation

Published on 22 Mar 2017 - 12:03

1k

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Inequality involving the tangent function

Published on 23 Mar 2017 - 0:33

219

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Maximize $P=\frac{\sqrt{a^2-1}}{a}+\frac{\sqrt{b^2-1}}{b}+\frac{\sqrt{c^2-1}}{c} $

Published on 25 Mar 2026 - 22:06

97

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prove an inequality with conditions

Published on 28 Mar 2017 - 8:35

56

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To find $\int \sin(2x)\cdot \frac{(e^{\cos^{2} x})}{({e^{(\sin^2 x)}})}$

Published on 28 Mar 2017 - 9:40

120

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Prove this $1+2abcxyz \geq a^2x^2 + b^2y^2+c^2z^2$

Published on 29 Mar 2017 - 8:20

146

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Integral Substitution $\text{csc }\theta \cot\theta$

Published on 29 Mar 2017 - 9:01

17

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Changing the bounds of an integral

Published on 14 Mar 2026 - 14:21

List Question

Why is $\int_0^{2\pi}\frac{x\cos x}{1+\cos x}dx$ not zero?

$f(\frac{2\pi}{7})+f(\frac{4\pi}{7})+f(\frac{6\pi}{7})=1$

Determine the minimum value of the expression, for $a,b$ , $c$ $\in\ \textbf{R}^+$

If $x^2 + y^2 + z^2 + 2xyz = 1$ then $x+ y+ z \leq \frac{3}{2}?$

Finding $\int\frac{2x^3-1}{x^6-x^4+2x^3-2x^2-x+1}dx$

Find all roots of the equation $2x^3+x^2+75x-81=0$

if such $a^2+b^2+c^2+1=d+\sqrt{a+b+c-d}$ show $2(a+b+c)=3$

Substitution into Partial Differential Equation

Inequality involving the tangent function

Maximize $P=\frac{\sqrt{a^2-1}}{a}+\frac{\sqrt{b^2-1}}{b}+\frac{\sqrt{c^2-1}}{c} $

prove an inequality with conditions

To find $\int \sin(2x)\cdot \frac{(e^{\cos^{2} x})}{({e^{(\sin^2 x)}})}$

Prove this $1+2abcxyz \geq a^2x^2 + b^2y^2+c^2z^2$

Integral Substitution $\text{csc }\theta \cot\theta$

Changing the bounds of an integral

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