Question

How to calculate the area and volume of a random 3d shape knowing only its coordinates?

score 281 · Answer 1 · 2026-03-25 06:12:06

281

Views

How to calculate the area and volume of a random 3d shape knowing only its coordinates?

Published on 25 Mar 2026 - 6:12

score 70 · Answer 2 · 2026-04-16 13:56:43

70

Views

Solving $4\sin^2\left(\frac\pi5(x-1)\right)=3$ with $x\in[0 , 2\pi)$

Published on 16 Apr 2026 - 13:56

score 112 · Answer 3 · 2026-04-16 05:27:28

112

Views

Find all 4 complex roots to $3z^4-z^3+2z^2-z+3=0$ using a trig substitution

Published on 16 Apr 2026 - 5:27

score 85 · Answer 4 · 2026-04-18 05:15:44

85

Views

Plot of $\arctan\left(\frac{x-1}{x+1}\right) - \arctan\left(x\right)$

Published on 18 Apr 2026 - 5:15

score 157 · Answer 5 · 2026-04-13 06:23:38

157

Views

Explanation of the steps on calculating the length of the catenary

Published on 13 Apr 2026 - 6:23

score 81 · Answer 6 · 2026-04-16 09:21:33

81

Views

why am I not finding pi as an extraneous solution? $2\sin^2(x/2)-3\sin(x/2)+1=0$

Published on 16 Apr 2026 - 9:21

score 52 · Answer 7 · 2026-04-13 23:19:09

52

Views

Is function $f(x)=\frac{\text{cos}(x)}{x}$ significant?

Published on 13 Apr 2026 - 23:19

score 152 · Answer 8 · 2026-04-14 15:06:20

152

Views

How to use complex analysis to evaluate the trigonometric integral $\int_{0}^{2 \pi}{\frac {\cos \left( x \right) }{2+\cos \left( x \right) }}$

Published on 14 Apr 2026 - 15:06

score 220 · Answer 9 · 2026-04-17 14:18:57

220

Views

Isolating $n$ in $A = \frac {nL^2}{4\tan(180^\circ/n)}$

Published on 17 Apr 2026 - 14:18

score 144 · Answer 10 · 2026-04-14 00:17:27

144

Views

If $\tan 2\alpha \cdot \tan \alpha = 1$, then what is $\alpha$? Different methods give different answers.

Published on 14 Apr 2026 - 0:17

score 100 · Answer 11 · 2026-04-13 19:16:34

Using the R method for finding all solutions to $\sin(2a) - \cos(2a) = \frac{\sqrt{6}}{2}$. My solution differs from official answer.

score 81 · Answer 12 · 2026-04-13 12:00:32

81

Views

how to find circle circumference point from a point inside the circle

Published on 13 Apr 2026 - 12:00

score 51 · Answer 13 · 2026-04-13 11:59:06

51

Views

Circle circumference point calculation

Published on 13 Apr 2026 - 11:59

score 1k · Answer 14 · 2026-04-12 00:10:33

1k

Views

Solve right triangle given two points.

Published on 12 Apr 2026 - 0:10

score 2.8k · Answer 15 · 2026-04-16 10:00:25

2.8k

Views

If $z=\cos\theta + i\sin \theta$ prove $\frac{z^2-1}{z^2+1}=i\tan\theta$

Published on 16 Apr 2026 - 10:00

List Question

How to calculate the area and volume of a random 3d shape knowing only its coordinates?

Solving $4\sin^2\left(\frac\pi5(x-1)\right)=3$ with $x\in[0 , 2\pi)$

Find all 4 complex roots to $3z^4-z^3+2z^2-z+3=0$ using a trig substitution

Plot of $\arctan\left(\frac{x-1}{x+1}\right) - \arctan\left(x\right)$

Explanation of the steps on calculating the length of the catenary

why am I not finding pi as an extraneous solution? $2\sin^2(x/2)-3\sin(x/2)+1=0$

Is function $f(x)=\frac{\text{cos}(x)}{x}$ significant?

How to use complex analysis to evaluate the trigonometric integral $\int_{0}^{2 \pi}{\frac {\cos \left( x \right) }{2+\cos \left( x \right) }}$

Isolating $n$ in $A = \frac {nL^2}{4\tan(180^\circ/n)}$

If $\tan 2\alpha \cdot \tan \alpha = 1$, then what is $\alpha$? Different methods give different answers.

Using the R method for finding all solutions to $\sin(2a) - \cos(2a) = \frac{\sqrt{6}}{2}$. My solution differs from official answer.

how to find circle circumference point from a point inside the circle

Circle circumference point calculation

Solve right triangle given two points.

If $z=\cos\theta + i\sin \theta$ prove $\frac{z^2-1}{z^2+1}=i\tan\theta$

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