General simplification
[src]
cos(k*x) 3*cos(x*(1 + k))
-------- + ----------------
4 4
$$\frac{\cos{\left(k x \right)}}{4} + \frac{3 \cos{\left(x \left(k + 1\right) \right)}}{4}$$
cos(k*x)/4 + 3*cos(x*(1 + k))/4
Rational denominator
[src]
/x\ / x\
2*cos(x + k*x) + sin|-|*sin|k*x + -|
\2/ \ 2/
------------------------------------
2
$$\frac{\sin{\left(\frac{x}{2} \right)} \sin{\left(k x + \frac{x}{2} \right)} + 2 \cos{\left(k x + x \right)}}{2}$$
(2*cos(x + k*x) + sin(x/2)*sin(k*x + x/2))/2
Assemble expression
[src]
/x\ / x\
sin|-|*sin|k*x + -|
\2/ \ 2/
------------------- + cos(k*x + x)
2
$$\frac{\sin{\left(\frac{x}{2} \right)} \sin{\left(k x + \frac{x}{2} \right)}}{2} + \cos{\left(k x + x \right)}$$
sin(x/2)*sin(k*x + x/2)/2 + cos(k*x + x)
0.5*sin(x/2)*sin(k*x + x/2) + cos(k*x + x)
0.5*sin(x/2)*sin(k*x + x/2) + cos(k*x + x)
Combining rational expressions
[src]
/x\ /x*(1 + 2*k)\
2*cos(x*(1 + k)) + sin|-|*sin|-----------|
\2/ \ 2 /
------------------------------------------
2
$$\frac{\sin{\left(\frac{x}{2} \right)} \sin{\left(\frac{x \left(2 k + 1\right)}{2} \right)} + 2 \cos{\left(x \left(k + 1\right) \right)}}{2}$$
(2*cos(x*(1 + k)) + sin(x/2)*sin(x*(1 + 2*k)/2))/2
/x\ /x \
sin|-|*sin|- + k*x|
\2/ \2 /
------------------- + cos(x + k*x)
2
$$\frac{\sin{\left(\frac{x}{2} \right)} \sin{\left(k x + \frac{x}{2} \right)}}{2} + \cos{\left(k x + x \right)}$$
sin(x/2)*sin(x/2 + k*x)/2 + cos(x + k*x)
2/x\ /x\ /x\
sin |-|*cos(k*x) cos|-|*sin|-|*sin(k*x)
\2/ \2/ \2/
cos(x)*cos(k*x) + ---------------- - sin(x)*sin(k*x) + ----------------------
2 2
$$\frac{\sin^{2}{\left(\frac{x}{2} \right)} \cos{\left(k x \right)}}{2} + \frac{\sin{\left(\frac{x}{2} \right)} \sin{\left(k x \right)} \cos{\left(\frac{x}{2} \right)}}{2} - \sin{\left(x \right)} \sin{\left(k x \right)} + \cos{\left(x \right)} \cos{\left(k x \right)}$$
cos(x)*cos(k*x) + sin(x/2)^2*cos(k*x)/2 - sin(x)*sin(k*x) + cos(x/2)*sin(x/2)*sin(k*x)/2
/ / x \ /x \\ / -I*x I*x\
| I*|- - - k*x| I*|- + k*x|| | ----- ---|
I*(x + k*x) I*(-x - k*x) | \ 2 / \2 /| | 2 2 |
e e \- e + e /*\- e + e /
------------ + ------------- - ---------------------------------------------------
2 2 8
$$- \frac{\left(e^{\frac{i x}{2}} - e^{- \frac{i x}{2}}\right) \left(- e^{i \left(- k x - \frac{x}{2}\right)} + e^{i \left(k x + \frac{x}{2}\right)}\right)}{8} + \frac{e^{i \left(- k x - x\right)}}{2} + \frac{e^{i \left(k x + x\right)}}{2}$$
/x\ /x \
sin|-|*sin|- + k*x|
\2/ \2 /
------------------- + cos(x + k*x)
2
$$\frac{\sin{\left(\frac{x}{2} \right)} \sin{\left(k x + \frac{x}{2} \right)}}{2} + \cos{\left(k x + x \right)}$$
sin(x/2)*sin(x/2 + k*x)/2 + cos(x + k*x)
/x\ /x \
sin|-|*sin|- + k*x|
\2/ \2 /
------------------- + cos(x + k*x)
2
$$\frac{\sin{\left(\frac{x}{2} \right)} \sin{\left(k x + \frac{x}{2} \right)}}{2} + \cos{\left(k x + x \right)}$$
sin(x/2)*sin(x/2 + k*x)/2 + cos(x + k*x)