Find the value of $\sin x+\sin 3x+\sin 5x....\sin 29x$
5080
How can we sum up $\sin$ and $\cos$ series when the angles are in arithmetic progression?
73512
Trigonometry Olympiad Question
43605
If $\sin(a)\sin(b)\sin(c)+\cos(a)\cos(b)=1$ then find the value of $\sin(c)$
7492
Is there a formula for $\sin(xy)$
116580
Prove by induction: $\sin{x}+\sin{3x}+\dots+\sin{(2n-1)x}=\frac{\sin^2{nx}}{\sin{x}}$
115504
Find the value of a+b+c
61443
So close yet so far Finding $\int \frac {\sec x \tan x}{3x+5} dx$
14279
Indefinite Integral with "sin" and "cos": $\int\frac{3\sin(x) + 2\cos(x)}{2\sin(x) + 3\cos(x)} \; dx $
89319
How can I find all the solutions of $\sin^5x+\cos^3x=1$
154216
Solve $\sin(z) = z$ in complex numbers
31776
How to find $\lim_{x\to 0}\frac{\tan 3x}{\tan 5x}$?
12841
Ratio of sines given, find ratio of cosines?
17188
Simplify $\cos(n \pi)$ and $\sin(n \pi)$ when n is an integer
54587
Finding value (Trigo Series)
125087
Evaluate the limit of ratio of sums of sines (without L'Hopital): $\lim_{x\to0} \frac{\sin x+\sin3x+\sin5x}{\sin2x+\sin4x+\sin6x}$
93174
Evaluate integral $\int_0^\pi \sin^4\left(x+\sin 3x\right)dx$
125171
Help with this trigonometry problem?