Mister Exam
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How to use it?
- Graphing y =:
- ((x^2+x-6)(x^2-2x-3))/(x^2-9)
- x/(x²-1)
-
|x+7|
- (x+5)^2
-
Identical expressions
- log(log(x^ three)^(x/ three))
- logarithm of ( logarithm of (x cubed ) to the power of (x divide by 3))
- logarithm of ( logarithm of (x to the power of three) to the power of (x divide by three))
- log(log(x3)(x/3))
- loglogx3x/3
- log(log(x³)^(x/3))
- log(log(x to the power of 3) to the power of (x/3))
- loglogx^3^x/3
- log(log(x^3)^(x divide by 3))
Graphing y = log(log(x^3)^(x/3))
The solution
You have entered
[src]
/ x\
| -|
| 3|
|/ / 3\\ |
f(x) = log\\log\x // /
$$f{\left(x \right)} = \log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)}$$
f = log(log(x^3)^(x/3))
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:
$$\log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)} = 0$$
Solve this equation
The points of intersection with the axis X:
Analytical solution
$$x_{1} = 0$$
$$x_{2} = e^{\frac{1}{3}}$$
Numerical solution
$$x_{1} = 1.39561242508609$$
so we need to solve the equation:
$$\log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)} = 0$$
Solve this equation
The points of intersection with the axis X:
Analytical solution
$$x_{1} = 0$$
$$x_{2} = e^{\frac{1}{3}}$$
Numerical solution
$$x_{1} = 1.39561242508609$$
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
$$\left(\frac{\log{\left(\log{\left(x^{3} \right)} \right)}}{3} + \frac{1}{\log{\left(x^{3} \right)}}\right) \log{\left(x^{3} \right)}^{- \frac{x}{3}} \log{\left(x^{3} \right)}^{\frac{x}{3}} = 0$$
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
$$\left(\frac{\log{\left(\log{\left(x^{3} \right)} \right)}}{3} + \frac{1}{\log{\left(x^{3} \right)}}\right) \log{\left(x^{3} \right)}^{- \frac{x}{3}} \log{\left(x^{3} \right)}^{\frac{x}{3}} = 0$$
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
$$\frac{1 - \frac{3}{\log{\left(x^{3} \right)}}}{x \log{\left(x^{3} \right)}} = 0$$
Solve this equation
The roots of this equation
$$x_{1} = e$$
Сonvexity and concavity intervals:
Let’s find the intervals where the function is convex or concave, for this look at the behaviour of the function at the inflection points:
Concave at the intervals
$$\left[e, \infty\right)$$
Convex at the intervals
$$\left(-\infty, e\right]$$
$$\frac{d^{2}}{d x^{2}} f{\left(x \right)} = 0$$
(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
$$\frac{1 - \frac{3}{\log{\left(x^{3} \right)}}}{x \log{\left(x^{3} \right)}} = 0$$
Solve this equation
The roots of this equation
$$x_{1} = e$$
Сonvexity and concavity intervals:
Let’s find the intervals where the function is convex or concave, for this look at the behaviour of the function at the inflection points:
Concave at the intervals
$$\left[e, \infty\right)$$
Convex at the intervals
$$\left(-\infty, e\right]$$
Horizontal asymptotes
Let’s find horizontal asymptotes with help of the limits of this function at x->+oo and x->-oo
$$\lim_{x \to -\infty} \log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)} = -\infty$$
Let's take the limit
so,
horizontal asymptote on the left doesn’t exist
$$\lim_{x \to \infty} \log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)} = \infty$$
Let's take the limit
so,
horizontal asymptote on the right doesn’t exist
$$\lim_{x \to -\infty} \log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)} = -\infty$$
Let's take the limit
so,
horizontal asymptote on the left doesn’t exist
$$\lim_{x \to \infty} \log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)} = \infty$$
Let's take the limit
so,
horizontal asymptote on the right doesn’t exist
Inclined asymptotes
Inclined asymptote can be found by calculating the limit of log(log(x^3)^(x/3)), divided by x at x->+oo and x ->-oo
$$\lim_{x \to -\infty}\left(\frac{\log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)}}{x}\right) = \infty$$
Let's take the limit
so,
inclined asymptote on the left doesn’t exist
$$\lim_{x \to \infty}\left(\frac{\log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)}}{x}\right) = \infty$$
Let's take the limit
so,
inclined asymptote on the right doesn’t exist
$$\lim_{x \to -\infty}\left(\frac{\log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)}}{x}\right) = \infty$$
Let's take the limit
so,
inclined asymptote on the left doesn’t exist
$$\lim_{x \to \infty}\left(\frac{\log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)}}{x}\right) = \infty$$
Let's take the limit
so,
inclined asymptote on the right doesn’t exist
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:
$$\log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)} = \log{\left(\log{\left(- x^{3} \right)}^{- \frac{x}{3}} \right)}$$
- No
$$\log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)} = - \log{\left(\log{\left(- x^{3} \right)}^{- \frac{x}{3}} \right)}$$
- No
so, the function
not is
neither even, nor odd
So, check:
$$\log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)} = \log{\left(\log{\left(- x^{3} \right)}^{- \frac{x}{3}} \right)}$$
- No
$$\log{\left(\log{\left(x^{3} \right)}^{\frac{x}{3}} \right)} = - \log{\left(\log{\left(- x^{3} \right)}^{- \frac{x}{3}} \right)}$$
- No
so, the function
not is
neither even, nor odd