Is it possible to calculate sine by hand?
60256
Is there a way to get trig functions without a calculator?
12841
Ratio of sines given, find ratio of cosines?
91744
Proving sum of sines is periodic when ratio of their frequencies is rational using differentation
121263
Using $\sin()$ or $\cos()$ for computing SHM?
73445
Is Pythagoras the only relation to hold between $\cos$ and $\sin$?
14540
Any shortcut to calculate factorial of a number (Without calculator or n to 1)?
91403
Can you calculate unix timestamps (universal clock) from any planet?
8638
If I know $AB$, how can I calculate $BA$?
104841
Can $\sin n$ get arbitrarily close to $1$ for $n\in\mathbb{N}?$
40556
Why is $\sin(\alpha+\beta)=\sin\alpha\cos\beta+\sin\beta\cos\alpha$
1317
Combining cosine or sine terms into a single cosine or sine
143584
Trigonometric ratios for angles greater than $90^\circ$?
93372
How to solve CSC = sin-1?
87934
Deducing $\sin x + \cos x \ge 1$ from $(\sin x + \cos x)^2 = 1 + 2 \sin x \cos x$
57152
Solve $\sin x = 1 - x$
84653
Distance between point and sine wave
23238
Linear combinations of sine and cosine