Calcmathlete
 Name:
 Andrew Suh
 School:
 About:
 Just an asian in high school who likes school and especially math so much that he decides to help others in school work. :)
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Questions Asked

Calcmathlete:
When converting Riemann Sums to Definite Integrals, under what conditions are you allowed to change the limits of integration? I don't mean…
 updated one month ago
 17 replies
 2 Medals
Mathematics

Calcmathlete:
Having a bit of trouble with \[\int_0^{\pi/2}\ln(\sin(x))dx\]. I'll post the solution given and the part that confuses me. Any help would be…
 updated one month ago
 11 replies
 1 Medal
Mathematics

Calcmathlete:
If \[\lim_{x > 0}{\left(\frac{h(x)  5}{x}\right)} = 1\]find the value of \[\lim_{x>0}{h(x)}\]
 updated 4 months ago
 5 replies
 No Medals Yet
Mathematics

Calcmathlete:
If \[\lim_{x > 0}{\left(\frac{h(x)  5}{x}\right)} = 1\]find the value of \[\lim_{x>0}{h(x)}\] I think that it does not exist, but my book…
 updated 4 months ago
 No Medals Yet
Mathematics

Calcmathlete:
Why exactly is \(31x^2 +12xy+y^2 −50x−125=0\) the equation of a degenerate conic section? I have tested it using the determinant of the matr…
 updated 6 months ago
 9 replies
 1 Medal
Mathematics

Calcmathlete:
If you were given:\[f(x) = \frac{1}{\frac{1}{x}}\] would the domain be (∞, ∞) or (∞, 0)U(0, ∞)? This is a question for all such examples w…
 updated 8 months ago
 3 replies
 1 Medal
Mathematics

Calcmathlete:
Solve for x: \(\sin{\frac{x}{2}} = 2\cos^{2}x  1\)
Please guide me to the answer. Like a push in the right direction.
 updated 8 months ago
 40 replies
 2 Medals
Mathematics

Calcmathlete:
I need some help interpreting an example problem using the \(\epsilon\delta\) limit definition.
 updated 8 months ago
 39 replies
 1 Medal
Mathematics

Calcmathlete:
The least of the three arithmetic means between 4 and 14 is equal to the positive geometric mean of 4 and k. Give the value of k. Please sh…
 updated 8 months ago
 No Medals Yet
Mathematics

Calcmathlete:
For sin x > 0, \(2\sin^{2}(x) + \sin(x)\cos(x) = 0\). Give the value of \(\cos(x)\). Please show all work!
 updated one year ago
 6 replies
 1 Medal
Mathematics

Calcmathlete:
Find the coordinates of the point where the vector line \(\vec{r} = (6 + \frac{7}{9}d)\vec{i} + (3 + \frac{4}{9}d)\vec{j} + (2  \frac{4}{9}…
 updated one year ago
 18 replies
 1 Medal
Mathematics

Calcmathlete:
The solution to the inequality \(x^{2}  3 < 1\) in interval notation is given by (a, b) U (c, d) with a < b < c < d. Determine \(\frac{a …
 updated one year ago
 No Medals Yet
Mathematics

Calcmathlete:
Given \(\vec{g} = 3\vec{i} + 6\vec{j}  12\vec{k}\) and \(\vec{h} = 5\vec{i}  10\vec{j} + 20\vec{k}\), how could I prove that \(\vec{g}\) …
 updated one year ago
 16 replies
 1 Medal
Mathematics

Calcmathlete:
VECTOR PROBLEM
The cross product of the normal vectors to two planes is a vector that points in the direction of the line of intersection o…
 updated one year ago
 8 replies
 1 Medal
Mathematics

Calcmathlete:
VECTOR PROBLEM
The cross product of the normal vectors to two planes is a vector that points in the direction of the line of intersection o…
 updated one year ago
 No Medals Yet
Mathematics

Calcmathlete:
If an object falls five meters during the first interval of time, what is the total distance fallen at the end of the second interval of tim…
 updated one year ago
 No Medals Yet
Mathematics

Calcmathlete:
Evaluate: \(\left[\begin{matrix}1 & 2 &1 & 3 \\2&3&2&0\\3&1&0&1\\0&0&3&2\end{matrix}\right]\)
 updated one year ago
 27 replies
 3 Medals
Mathematics

Calcmathlete:
Why is the range of \(y = \sin^{1}\theta\) in Quadrants I and IV? I thought that the principal values were in Quadrants I and III?
 updated one year ago
 9 replies
 1 Medal
Mathematics

Calcmathlete:
How would you do the cross product of a twodimensional vector? I've done threedimensional ones, but not twodimensional ones.
 updated one year ago
 6 replies
 1 Medal
Mathematics

Calcmathlete:
What is the difference between finding a solution graphically, numerically, and algebraically?
 updated one year ago
 13 replies
 1 Medal
Mathematics

Calcmathlete:
Does \(y = \tan\theta\) have points of inflection?
I think no, but I'm not sure.
 updated one year ago
 3 replies
 1 Medal
Mathematics

Calcmathlete:
Does the graph \(y = \sec\theta\) have points of inflection?
I think not?
 updated one year ago
 No Medals Yet
Mathematics

Calcmathlete:
Are there any values of \(\theta\) in which \(\sec \theta ~or~\csc \theta = 0\)?
I'm pretty sure that it's no since I can't think of any, bu…
 updated one year ago
 2 replies
 1 Medal
Mathematics

Calcmathlete:
If you have a problem like \[\frac{3}{\sqrt{9}}\]does it matter if you bring the i out first or rationalize first? I believe that it doesn'…
 updated one year ago
 7 replies
 1 Medal
Mathematics

Calcmathlete:
Let \(f\) and g be defined by\[f(x) = x^2 + 8x  4~~~~~1 ≤ x ≤ 6\]\[g(x) = 5  x~~~~~0 ≤ x ≤ 7\]How would I go about with finding the domai…
 updated one year ago
 14 replies
 3 Medals
Mathematics

Calcmathlete:
GIven that \(f(x) = \sqrt{9  x^2}\), and that \(g(x) = f(x  4)\), rewrite g(x) in terms of x. Please tell me how to do it and not just the…
 updated one year ago
 10 replies
 2 Medals
Mathematics

Calcmathlete:
Is this correct? Just getting my facts straight...
\[a + bi = \sqrt{a^2 + b^2}\]
 updated one year ago
 8 replies
 2 Medals
Mathematics

Calcmathlete:
Very confused on these particular problems...no clue what it's talking about...
…
 updated one year ago
 14 replies
 2 Medals
Mathematics

Calcmathlete:
GIven the graph of y = f(x) (first attachment), graph \(y = f(x  1)^2 + 2\) (second attachment) did I do it correctly?
 updated one year ago
 5 replies
 2 Medals
Mathematics

Calcmathlete:
Is there a way to get bigger parentheses? For when I use fractions, the parentheses look a bit strange since they're shorter than the fracti…
 updated one year ago
 7 replies
 5 Medals
Mathematics
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