value of trigonometric product
131621
Evaluating a product of tangents
107067
Finding the argument of $z=1-\cos(2\theta)-i\sin(2\theta)$
43605
If $\sin(a)\sin(b)\sin(c)+\cos(a)\cos(b)=1$ then find the value of $\sin(c)$
617
Find θ: $β=\arctan\frac{(R+r)·\sin(θ)-r·\sin(θ(1+\frac{R}{r}))}{(R+r)·\cos(θ)-r·\cos(θ(1+\frac{R}{r}))}$
13297
Prove the following trigonometric identity without a calculator involved
118586
Confused About Trigonometric Substitution
52018
Can $\frac{\sqrt{3}}{\sin20^{\circ}}-\frac{1}{\cos20^{\circ}}$ have two values?
27628
Solving $a \sin\theta + b \cos\theta = c$
5642
Geometry with Trigonometry
38975
Find the value of $\textrm{cosec}^2\left(\frac\pi7\right) +\textrm{cosec}^2\left(\frac{2\pi}7\right)+\textrm{cosec}^2\left(\frac{4\pi}7\right)$
14570
Finding the value of cot 142.5°
120444
Trigonometric Triangle Equality
153283
Trigonometric Integral Using Residue Theorem
104384
Trigonometric identity: $\frac {\tan\theta}{1-\cot\theta}+\frac {\cot\theta}{1-\tan\theta} =1+\sec\theta\cdot\csc\theta$
126904
math.sin incorrect result
16270
Trigonometry question: $\sin^2(A) + \sin^2(B) - \sin^2(C) = 2\sin(A)\sin(B)\cos(C).$
58483
Determining the general solution for the trigonometric equation $ 5\cos(x)-12\sin (x) = 13 $