What is the period of $\sin 2\theta + \sin \frac{\theta}{2}$
94273
Principal period of $\sin\frac{3x}{4}+\cos\frac{2x}{5}$
80680
General term of Taylor Series of $\sin x$ centered at $\pi/4$
617
Find θ: $β=\arctan\frac{(R+r)·\sin(θ)-r·\sin(θ(1+\frac{R}{r}))}{(R+r)·\cos(θ)-r·\cos(θ(1+\frac{R}{r}))}$
122169
Prove $\sin(\pi/2)=1$ using Taylor series
87260
Let $\theta=\frac{2 \pi}{67}$ consider the rotation matrix $A$. What is $A^{2010}$?
114411
Simple Proof of the Euler Identity $\exp{i\theta}=\cos{\theta}+i\sin{\theta}$
70765
If $\frac{\tan(a+b-c)}{\tan(a-b+c)}=\frac{\tan c}{\tan b}$, then $\sin(b-c)=0$ or $\sin 2a + \sin2b + \sin 2c=0$
36701
$\displaystyle\int_{0}^{2\pi}\frac{1}{a+ \cos\theta}\,d\theta$
68881
Solve for $\theta$: $a = b\tan\theta - \frac{c}{\cos\theta}$
27628
Solving $a \sin\theta + b \cos\theta = c$
156162
Are $\cos^2 \theta$ and $\cos \theta^2$ the same?
10289
Need help in proving that $\frac{\sin\theta - \cos\theta + 1}{\sin\theta + \cos\theta - 1} = \frac 1{\sec\theta - \tan\theta}$
27910
How to evaluate $\int_0^{2\pi} \frac{d\theta}{A+B\cos\theta}$?
44391
How can I prove $n - 2\sqrt{n} = \Theta(n)$
24656
Proving that $\frac{\csc\theta}{\cot\theta}-\frac{\cot\theta}{\csc\theta}=\tan\theta\sin\theta$
22106
Prove that time for planet to fall into the Sun equals $\left( \frac { 1 }{ 4\sqrt { 2 } } \right)$ of the planet's period
11963
Period of a pendulum