Mister Exam
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-
How to use it?
- Graphing y =:
- x^2+3x-10
-
(x^2+3)/(x-1)
- x^2-10x+27
- ((x+1)^2)/(x-2)
- Limit of the function:
-
asin(x)*cot(x)
-
Identical expressions
- asin(x)*cot(x)
- arc sinus of e of (x) multiply by cotangent of (x)
- asin(x)cot(x)
- asinxcotx
-
Similar expressions
- arcsin(x)*cot(x)
- arcsinx*cot(x)
Graphing y = asin(x)*cot(x)
The solution
You have entered
[src]
f(x) = asin(x)*cot(x)
$$f{\left(x \right)} = \cot{\left(x \right)} \operatorname{asin}{\left(x \right)}$$
f = cot(x)*asin(x)
The graph of the function
The points of intersection with the X-axis coordinate
Graph of the function intersects the axis X at f = 0
so we need to solve the equation:
$$\cot{\left(x \right)} \operatorname{asin}{\left(x \right)} = 0$$
Solve this equation
The points of intersection with the axis X:
Analytical solution
$$x_{1} = - \frac{\pi}{2}$$
$$x_{2} = \frac{\pi}{2}$$
Numerical solution
$$x_{1} = 29.845130209103$$
$$x_{2} = -61.261056745001$$
$$x_{3} = 7.85398163397448$$
$$x_{4} = -83.2522053201295$$
$$x_{5} = -20.4203522483337$$
$$x_{6} = -70.6858347057703$$
$$x_{7} = 17.2787595947439$$
$$x_{8} = 67.5442420521806$$
$$x_{9} = -42.4115008234622$$
$$x_{10} = 98.9601685880785$$
$$x_{11} = 4.71238898038469$$
$$x_{12} = -95.8185759344887$$
$$x_{13} = -32.9867228626928$$
$$x_{14} = 89.5353906273091$$
$$x_{15} = 39.2699081698724$$
$$x_{16} = -17.2787595947439$$
$$x_{17} = 92.6769832808989$$
$$x_{18} = -64.4026493985908$$
$$x_{19} = 14.1371669411541$$
$$x_{20} = -48.6946861306418$$
$$x_{21} = -17.2787595947439$$
$$x_{22} = -76.9690200129499$$
$$x_{23} = 54.9778714378214$$
$$x_{24} = -89.5353906273091$$
$$x_{25} = 45.553093477052$$
$$x_{26} = -23.5619449019235$$
$$x_{27} = -1.5707963267949$$
$$x_{28} = -67.5442420521806$$
$$x_{29} = -10.9955742875643$$
$$x_{30} = 61.261056745001$$
$$x_{31} = -29.845130209103$$
$$x_{32} = 76.9690200129499$$
$$x_{33} = 95.8185759344887$$
$$x_{34} = 70.6858347057703$$
$$x_{35} = -26.7035375555132$$
$$x_{36} = -7.85398163397448$$
$$x_{37} = 73.8274273593601$$
$$x_{38} = 64.4026493985908$$
$$x_{39} = 83.2522053201295$$
$$x_{40} = -98.9601685880785$$
$$x_{41} = -39.2699081698724$$
$$x_{42} = 32.9867228626928$$
$$x_{43} = -73.8274273593601$$
$$x_{44} = -36.1283155162826$$
$$x_{45} = -45.553093477052$$
$$x_{46} = 48.6946861306418$$
$$x_{47} = -14.1371669411541$$
$$x_{48} = 51.8362787842316$$
$$x_{49} = -54.9778714378214$$
$$x_{50} = 58.1194640914112$$
$$x_{51} = 10.9955742875643$$
$$x_{52} = 23.5619449019235$$
$$x_{53} = -39.2699081698724$$
$$x_{54} = -4.71238898038469$$
$$x_{55} = 36.1283155162826$$
$$x_{56} = -51.8362787842316$$
$$x_{57} = -86.3937979737193$$
$$x_{58} = -58.1194640914112$$
$$x_{59} = 42.4115008234622$$
$$x_{60} = -92.6769832808989$$
$$x_{61} = 20.4203522483337$$
$$x_{62} = -80.1106126665397$$
$$x_{63} = 1.5707963267949$$
$$x_{64} = 26.7035375555132$$
$$x_{65} = 86.3937979737193$$
$$x_{66} = 80.1106126665397$$
so we need to solve the equation:
$$\cot{\left(x \right)} \operatorname{asin}{\left(x \right)} = 0$$
Solve this equation
The points of intersection with the axis X:
Analytical solution
$$x_{1} = - \frac{\pi}{2}$$
$$x_{2} = \frac{\pi}{2}$$
Numerical solution
$$x_{1} = 29.845130209103$$
$$x_{2} = -61.261056745001$$
$$x_{3} = 7.85398163397448$$
$$x_{4} = -83.2522053201295$$
$$x_{5} = -20.4203522483337$$
$$x_{6} = -70.6858347057703$$
$$x_{7} = 17.2787595947439$$
$$x_{8} = 67.5442420521806$$
$$x_{9} = -42.4115008234622$$
$$x_{10} = 98.9601685880785$$
$$x_{11} = 4.71238898038469$$
$$x_{12} = -95.8185759344887$$
$$x_{13} = -32.9867228626928$$
$$x_{14} = 89.5353906273091$$
$$x_{15} = 39.2699081698724$$
$$x_{16} = -17.2787595947439$$
$$x_{17} = 92.6769832808989$$
$$x_{18} = -64.4026493985908$$
$$x_{19} = 14.1371669411541$$
$$x_{20} = -48.6946861306418$$
$$x_{21} = -17.2787595947439$$
$$x_{22} = -76.9690200129499$$
$$x_{23} = 54.9778714378214$$
$$x_{24} = -89.5353906273091$$
$$x_{25} = 45.553093477052$$
$$x_{26} = -23.5619449019235$$
$$x_{27} = -1.5707963267949$$
$$x_{28} = -67.5442420521806$$
$$x_{29} = -10.9955742875643$$
$$x_{30} = 61.261056745001$$
$$x_{31} = -29.845130209103$$
$$x_{32} = 76.9690200129499$$
$$x_{33} = 95.8185759344887$$
$$x_{34} = 70.6858347057703$$
$$x_{35} = -26.7035375555132$$
$$x_{36} = -7.85398163397448$$
$$x_{37} = 73.8274273593601$$
$$x_{38} = 64.4026493985908$$
$$x_{39} = 83.2522053201295$$
$$x_{40} = -98.9601685880785$$
$$x_{41} = -39.2699081698724$$
$$x_{42} = 32.9867228626928$$
$$x_{43} = -73.8274273593601$$
$$x_{44} = -36.1283155162826$$
$$x_{45} = -45.553093477052$$
$$x_{46} = 48.6946861306418$$
$$x_{47} = -14.1371669411541$$
$$x_{48} = 51.8362787842316$$
$$x_{49} = -54.9778714378214$$
$$x_{50} = 58.1194640914112$$
$$x_{51} = 10.9955742875643$$
$$x_{52} = 23.5619449019235$$
$$x_{53} = -39.2699081698724$$
$$x_{54} = -4.71238898038469$$
$$x_{55} = 36.1283155162826$$
$$x_{56} = -51.8362787842316$$
$$x_{57} = -86.3937979737193$$
$$x_{58} = -58.1194640914112$$
$$x_{59} = 42.4115008234622$$
$$x_{60} = -92.6769832808989$$
$$x_{61} = 20.4203522483337$$
$$x_{62} = -80.1106126665397$$
$$x_{63} = 1.5707963267949$$
$$x_{64} = 26.7035375555132$$
$$x_{65} = 86.3937979737193$$
$$x_{66} = 80.1106126665397$$
Extrema of the function
In order to find the extrema, we need to solve the equation
$$\frac{d}{d x} f{\left(x \right)} = 0$$
(the derivative equals zero),
and the roots of this equation are the extrema of this function:
$$\frac{d}{d x} f{\left(x \right)} = $$
the first derivative
$$\left(- \cot^{2}{\left(x \right)} - 1\right) \operatorname{asin}{\left(x \right)} + \frac{\cot{\left(x \right)}}{\sqrt{1 - x^{2}}} = 0$$
Solve this equation
Solutions are not found,
function may have no extrema
$$\frac{d}{d x} f{\left(x \right)} = 0$$
(the derivative equals zero),
and the roots of this equation are the extrema of this function:
$$\frac{d}{d x} f{\left(x \right)} = $$
the first derivative
$$\left(- \cot^{2}{\left(x \right)} - 1\right) \operatorname{asin}{\left(x \right)} + \frac{\cot{\left(x \right)}}{\sqrt{1 - x^{2}}} = 0$$
Solve this equation
Solutions are not found,
function may have no extrema
Horizontal asymptotes
Let’s find horizontal asymptotes with help of the limits of this function at x->+oo and x->-oo
Let's take the limit
so,
equation of the horizontal asymptote on the left:
$$y = \lim_{x \to -\infty}\left(\cot{\left(x \right)} \operatorname{asin}{\left(x \right)}\right)$$
Let's take the limit
so,
equation of the horizontal asymptote on the right:
$$y = \lim_{x \to \infty}\left(\cot{\left(x \right)} \operatorname{asin}{\left(x \right)}\right)$$
True
Let's take the limit
so,
equation of the horizontal asymptote on the left:
$$y = \lim_{x \to -\infty}\left(\cot{\left(x \right)} \operatorname{asin}{\left(x \right)}\right)$$
True
Let's take the limit
so,
equation of the horizontal asymptote on the right:
$$y = \lim_{x \to \infty}\left(\cot{\left(x \right)} \operatorname{asin}{\left(x \right)}\right)$$
Inclined asymptotes
Inclined asymptote can be found by calculating the limit of asin(x)*cot(x), divided by x at x->+oo and x ->-oo
Let's take the limit
so,
inclined asymptote equation on the left:
$$y = x \lim_{x \to -\infty}\left(\frac{\cot{\left(x \right)} \operatorname{asin}{\left(x \right)}}{x}\right)$$
Let's take the limit
so,
inclined asymptote equation on the right:
$$y = x \lim_{x \to \infty}\left(\frac{\cot{\left(x \right)} \operatorname{asin}{\left(x \right)}}{x}\right)$$
True
Let's take the limit
so,
inclined asymptote equation on the left:
$$y = x \lim_{x \to -\infty}\left(\frac{\cot{\left(x \right)} \operatorname{asin}{\left(x \right)}}{x}\right)$$
True
Let's take the limit
so,
inclined asymptote equation on the right:
$$y = x \lim_{x \to \infty}\left(\frac{\cot{\left(x \right)} \operatorname{asin}{\left(x \right)}}{x}\right)$$
Even and odd functions
Let's check, whether the function even or odd by using relations f = f(-x) и f = -f(-x).
So, check:
$$\cot{\left(x \right)} \operatorname{asin}{\left(x \right)} = \cot{\left(x \right)} \operatorname{asin}{\left(x \right)}$$
- Yes
$$\cot{\left(x \right)} \operatorname{asin}{\left(x \right)} = - \cot{\left(x \right)} \operatorname{asin}{\left(x \right)}$$
- No
so, the function
is
even
So, check:
$$\cot{\left(x \right)} \operatorname{asin}{\left(x \right)} = \cot{\left(x \right)} \operatorname{asin}{\left(x \right)}$$
- Yes
$$\cot{\left(x \right)} \operatorname{asin}{\left(x \right)} = - \cot{\left(x \right)} \operatorname{asin}{\left(x \right)}$$
- No
so, the function
is
even