What really happens when you use sine, cosine or tangent.
64268
How does a calculator calculate the sine, cosine, tangent using just a number?
96367
Intuition of Addition Formula for Sine and Cosine
81825
Orthogonality of sine and cosine integrals.
63737
Incorrect plot using pgfplots (trigonometric functions like cos, sin and tan)
144641
Tangents are drawn from the point $(\alpha,\beta)$ to the hyperbola $3x^2-2y^2=6$ and are inclined at angles $\theta$ and $\phi$ to the $x-$axis.
75570
Easy way of memorizing values of sine, cosine, and tangent
145559
Trigonometry problem on product of trig functions.
118577
Fallacious proof involving trigonometry
12841
Ratio of sines given, find ratio of cosines?
140395
Fit data with linear combinations of Cos and Sin
5642
Geometry with Trigonometry
118586
Confused About Trigonometric Substitution
103701
Fundamental Theorem of Trigonometry
34049
How can I understand and prove the "sum and difference formulas" in trigonometry?
120569
Trigonometric Functions And Identities Question .
47598
Motivation behind the definition of tangent vectors
64255
Trigonometry problem