Mister Exam
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-
How to use it?
- Graphing y =:
- -x^2+5*x+4
- (x^2-4)/(2x+5)
- x^2+3x-10
-
(x^2+3)/(x-1)
-
Identical expressions
- arctg1/(x- four)
- arctg1 divide by (x minus 4)
- arctg1 divide by (x minus four)
- arctg1/x-4
- arctg1 divide by (x-4)
-
Similar expressions
- arctg1/(x+4)
Graphing y = arctg1/(x-4)
The solution
You have entered
[src]
atan(1)
f(x) = -------
x - 4
$$f{\left(x \right)} = \frac{\operatorname{atan}{\left(1 \right)}}{x - 4}$$
f = atan(1)/(x - 4)
The graph of the function
The domain of the function
The points at which the function is not precisely defined:
$$x_{1} = 4$$
$$x_{1} = 4$$
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:
$$\frac{\operatorname{atan}{\left(1 \right)}}{x - 4} = 0$$
Solve this equation
Solution is not found,
it's possible that the graph doesn't intersect the axis X
so we need to solve the equation:
$$\frac{\operatorname{atan}{\left(1 \right)}}{x - 4} = 0$$
Solve this equation
Solution is not found,
it's possible that the graph doesn't intersect the axis X
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
$$- \frac{\operatorname{atan}{\left(1 \right)}}{\left(x - 4\right)^{2}} = 0$$
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
$$- \frac{\operatorname{atan}{\left(1 \right)}}{\left(x - 4\right)^{2}} = 0$$
Solve this equation
Solutions are not found,
function may have no extrema
Inflection points
Let's find the inflection points, we'll need to solve the equation for this
$$\frac{d^{2}}{d x^{2}} f{\left(x \right)} = 0$$
(the second derivative equals zero),
the roots of this equation will be the inflection points for the specified function graph:
$$\frac{d^{2}}{d x^{2}} f{\left(x \right)} = $$
the second derivative
$$\frac{2 \operatorname{atan}{\left(1 \right)}}{\left(x - 4\right)^{3}} = 0$$
Solve this equation
Solutions are not found,
maybe, the function has no inflections
$$\frac{d^{2}}{d x^{2}} f{\left(x \right)} = 0$$
(the second derivative equals zero),
the roots of this equation will be the inflection points for the specified function graph:
$$\frac{d^{2}}{d x^{2}} f{\left(x \right)} = $$
the second derivative
$$\frac{2 \operatorname{atan}{\left(1 \right)}}{\left(x - 4\right)^{3}} = 0$$
Solve this equation
Solutions are not found,
maybe, the function has no inflections
Vertical asymptotes
Have:
$$x_{1} = 4$$
$$x_{1} = 4$$
Horizontal asymptotes
Let’s find horizontal asymptotes with help of the limits of this function at x->+oo and x->-oo
$$\lim_{x \to -\infty}\left(\frac{\operatorname{atan}{\left(1 \right)}}{x - 4}\right) = 0$$
Let's take the limit
so,
equation of the horizontal asymptote on the left:
$$y = 0$$
$$\lim_{x \to \infty}\left(\frac{\operatorname{atan}{\left(1 \right)}}{x - 4}\right) = 0$$
Let's take the limit
so,
equation of the horizontal asymptote on the right:
$$y = 0$$
$$\lim_{x \to -\infty}\left(\frac{\operatorname{atan}{\left(1 \right)}}{x - 4}\right) = 0$$
Let's take the limit
so,
equation of the horizontal asymptote on the left:
$$y = 0$$
$$\lim_{x \to \infty}\left(\frac{\operatorname{atan}{\left(1 \right)}}{x - 4}\right) = 0$$
Let's take the limit
so,
equation of the horizontal asymptote on the right:
$$y = 0$$
Inclined asymptotes
Inclined asymptote can be found by calculating the limit of atan(1)/(x - 4), divided by x at x->+oo and x ->-oo
$$\lim_{x \to -\infty}\left(\frac{\operatorname{atan}{\left(1 \right)}}{x \left(x - 4\right)}\right) = 0$$
Let's take the limit
so,
inclined coincides with the horizontal asymptote on the right
$$\lim_{x \to \infty}\left(\frac{\operatorname{atan}{\left(1 \right)}}{x \left(x - 4\right)}\right) = 0$$
Let's take the limit
so,
inclined coincides with the horizontal asymptote on the left
$$\lim_{x \to -\infty}\left(\frac{\operatorname{atan}{\left(1 \right)}}{x \left(x - 4\right)}\right) = 0$$
Let's take the limit
so,
inclined coincides with the horizontal asymptote on the right
$$\lim_{x \to \infty}\left(\frac{\operatorname{atan}{\left(1 \right)}}{x \left(x - 4\right)}\right) = 0$$
Let's take the limit
so,
inclined coincides with the horizontal asymptote on the left
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:
$$\frac{\operatorname{atan}{\left(1 \right)}}{x - 4} = \frac{\operatorname{atan}{\left(1 \right)}}{- x - 4}$$
- No
$$\frac{\operatorname{atan}{\left(1 \right)}}{x - 4} = - \frac{\operatorname{atan}{\left(1 \right)}}{- x - 4}$$
- No
so, the function
not is
neither even, nor odd
So, check:
$$\frac{\operatorname{atan}{\left(1 \right)}}{x - 4} = \frac{\operatorname{atan}{\left(1 \right)}}{- x - 4}$$
- No
$$\frac{\operatorname{atan}{\left(1 \right)}}{x - 4} = - \frac{\operatorname{atan}{\left(1 \right)}}{- x - 4}$$
- No
so, the function
not is
neither even, nor odd