Calculate cos 43(degree) with an error less than 1/20.000
13186
Approximating cos(43) with error less than $8/60000$
46378
Trig substitution; why can we ignore the absolute value?
16931
Can one do the maths of physics without using $\sqrt{-1}$?
118124
How to reconcile z-scores into a number from -1 to 1?
39752
Is there a limit of $\cos(n!)$?
155493
Minimum value of the expression given below.
46540
Converting Degree Minutes to decimal degrees using Excel formula?
8545
Calculating length contraction at speed $c$ (not near it)
147419
Trigonometric Uncertainty Propagation
56151
Mental estimate for tangent of an angle (from $0$ to $90$ degrees)
32183
A "fast" way for  computing $ \prod \limits_{i=1}^{45}(1+\tan i^\circ) $?
134745
float result is inaccurate
53554
Evaluate $\int \cos(\cos x)~dx$
151563
Evaluate: $\int_{0}^{\pi}\frac{\cos 2017x}{5-4\cos x}dx$
58613
Calculating distance between two sets of Decimal Degree coordinates?
43637
Derivative of the sine function when the argument is measured in degrees
36063
Finding the limit of $(1-\cos x)/x^2$