Min value of $\cos(\sin x)+\sin(\cos x)$
11744
Maximum and minimum of $f(x)=\cos(\sin(x))-\sin(\cos(x))$
115513
Find the minimum of $\sqrt{(x+1)^2+(y-1)^2}+\sqrt{(x+2)^2+(y+2)^2}+\sqrt{(x-1)^2+(y+1)^2}$ For real $x,y$
115248
$x\sin x$ is a solution of $n$th order linear differential equation. Find minimum $n$
115850
Minimum of $|ax-by+c|$
98392
Value of the limit $\lim_{x \to 0} \frac{\sin(\frac{1}{x})}{\sin(\frac{1}{x})}$
6549
What is the integral of $\sin(\cos x)$?
145559
Trigonometry problem on product of trig functions.
137105
The minimum value of $x^8 – 8x^6 + 19x^4 – 12x^3 + 14x^2 – 8x + 9$ is
51729
Solve the following equation: $\sqrt {\sin x - \sqrt {\cos x + \sin x} } = \cos x$
72278
What is the value of $\frac{\sin x}x$ at $x=0$?
81102
Cosine of the sum of two solutions of trigonometric equation $a\cos \theta + b\sin \theta = c$
88432
A problem on range of a trigonometric function: what is the range of $\frac{\sqrt{3}\sin x}{2+\cos x}$?
17188
Simplify $\cos(n \pi)$ and $\sin(n \pi)$ when n is an integer
155493
Minimum value of the expression given below.
53411
Minimum of $\sqrt{\frac{a}{b+c}}+\sqrt{\frac{b}{c+a}}+\sqrt{\frac{c}{a+b}}$
14410
If $(1+ \cos A) (1+ \cos B) (1+\cos C)= y = (1- \cos A) (1-\cos B) (1-\cos C)$ then $y = \pm \sin A \sin B \sin C$
99366
Minimum of an expression involving radicals: $\sqrt{\frac{2a}{a+b}} + \sqrt{\frac{2b}{b+c}} + \sqrt{\frac{2c}{c+a}}$