Question

Find t for $A\sin(w_1t) = -B\sin(w_2t)$

score 56 · Answer 1 · 2018-04-04 23:22:24

56

Views

Find t for $A\sin(w_1t) = -B\sin(w_2t)$

Published on 04 Apr 2018 - 23:22

score 180 · Answer 2 · 2026-03-25 04:39:41

180

Views

Compare the heights of two midpoints in a hyperbolic triangle

Published on 25 Mar 2026 - 4:39

score 171 · Answer 3 · 2018-04-05 05:44:21

Proving the trig identity $\frac{1-\cos\theta}{\sin\theta} = \frac{\sin\theta}{1+\cos\theta}$ without cross-multiplying

score 55 · Answer 4 · 2018-04-05 16:29:45

55

Views

How to solve $\cos x-x=-\frac{\pi}2$ without using the calculator

Published on 05 Apr 2018 - 16:29

score 945 · Answer 5 · 2026-03-27 11:52:47

945

Views

Applying 3D rotations to align two points in front plane

Published on 27 Mar 2026 - 11:52

score 1.3k · Answer 6 · 2026-03-25 18:04:37

1.3k

Views

If $8R^2=a^2+b^2+c^2$ then prove that the triangle is right angled.

Published on 25 Mar 2026 - 18:04

score 2.7k · Answer 7 · 2018-04-06 02:51:07

2.7k

Views

If $b-a=mc$ then prove that $\cot (\dfrac {B-A}{2})=\dfrac {1+m.\cos (B)}{m.sin (B)}$

Published on 06 Apr 2018 - 2:51

score 141 · Answer 8 · 2018-04-06 04:30:13

141

Views

Solve: $5\cos^2 (x) - 4\sin (x)\cos (x)+3\sin^2 (x)=2$

Published on 06 Apr 2018 - 4:30

score 184 · Answer 9 · 2018-04-06 06:04:30

184

Views

Can we express $\cos(4\theta)$ using only cosine?

Published on 06 Apr 2018 - 6:04

score 57 · Answer 10 · 2018-04-06 08:29:50

57

Views

sqrt(x)sin(x)=1/2

Published on 06 Apr 2018 - 8:29

score 41 · Answer 11 · 2026-03-25 01:35:32

41

Views

Solving the system $a+be^{-\lambda t_i}\cos(wt_i)=\epsilon_i$ (with $i=1,2$) for $\lambda$ and $w$

Published on 25 Mar 2026 - 1:35

score 107 · Answer 12 · 2018-04-06 09:49:51

107

Views

Proving $\frac{\cos 2x}{1+\sin 2 x} = \sec 2 x - \tan 2x$

Published on 06 Apr 2018 - 9:49

score 3.2k · Answer 13 · 2018-04-06 10:30:41

3.2k

Views

Find the derivative of $\cos(x^2+1)$ by first principle of derivative.

Published on 06 Apr 2018 - 10:30

score 3k · Answer 14 · 2026-03-25 17:22:19

3k

Views

Is the sum of two sine waves periodic?

Published on 25 Mar 2026 - 17:22

score 155 · Answer 15 · 2026-03-22 21:37:09

155

Views

Product identity: $x^{n+1}-1=\prod_{k=0}^{n}{(x-e^\frac{2ik\pi}{n+1}})$

Published on 22 Mar 2026 - 21:37

List Question

Find t for $A\sin(w_1t) = -B\sin(w_2t)$

Compare the heights of two midpoints in a hyperbolic triangle

Proving the trig identity $\frac{1-\cos\theta}{\sin\theta} = \frac{\sin\theta}{1+\cos\theta}$ without cross-multiplying

How to solve $\cos x-x=-\frac{\pi}2$ without using the calculator

Applying 3D rotations to align two points in front plane

If $8R^2=a^2+b^2+c^2$ then prove that the triangle is right angled.

If $b-a=mc$ then prove that $\cot (\dfrac {B-A}{2})=\dfrac {1+m.\cos (B)}{m.sin (B)}$

Solve: $5\cos^2 (x) - 4\sin (x)\cos (x)+3\sin^2 (x)=2$

Can we express $\cos(4\theta)$ using only cosine?

sqrt(x)sin(x)=1/2

Solving the system $a+be^{-\lambda t_i}\cos(wt_i)=\epsilon_i$ (with $i=1,2$) for $\lambda$ and $w$

Proving $\frac{\cos 2x}{1+\sin 2 x} = \sec 2 x - \tan 2x$

Find the derivative of $\cos(x^2+1)$ by first principle of derivative.

Is the sum of two sine waves periodic?

Product identity: $x^{n+1}-1=\prod_{k=0}^{n}{(x-e^\frac{2ik\pi}{n+1}})$

Trending Questions

Popular # Hahtags

Popular Questions