Install Free Gold Price Widget!
Install Free Gold Price Widget!
Install Free Gold Price Widget!
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- Is there a way to get trig functions without a calculator?
In school, we just started learning about trigonometry, and I was wondering: is there a way to find the sine, cosine, tangent, cosecant, secant, and cotangent of a single angle without using a calc
- calculus - Evaluating integrals with sigma notation - Mathematics Stack . . .
Evaluating integrals with sigma notation Ask Question Asked 13 years, 1 month ago Modified 8 years, 1
- Polar Coordinates as a Definitive Technique for Evaluating Limits
A lot of questions say "use polar coordinates" to calculate limits when they approach $0$ But is using polar coordinates the best way to evaluate limits, moreover, prove that they exist? Do they
- Evaluating $\\lim\\limits_{n\\to\\infty} e^{-n} \\sum\\limits_{k=0}^{n . . .
I'm supposed to calculate: $$\\lim_{n\\to\\infty} e^{-n} \\sum_{k=0}^{n} \\frac{n^k}{k!}$$ By using WolframAlpha, I might guess that the limit is $\\frac{1}{2
- Evaluating $ \\lim\\limits_{n\\to\\infty} \\sum_{k=1}^{n^2} \\frac{n}{n . . .
Here's another approach First, note that $$\begin{eqnarray*} \sum_{k=n^2+1}^\infty \frac{n}{n^2+k^2} < \sum_{k=n^2+1}^\infty \frac{n}{k^2} \\ \le n\int_{n^2
- Easy way to compute logarithms without a calculator?
I would need to be able to compute logarithms without using a calculator, just on paper The result should be a fraction so it is the most accurate For example I have seen this in math class calc
- integration - Evaluating $\int_C\frac {z+1} {z^2-2z}dz$, where $C$ is . . .
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- linear algebra - Show that $\det(A) = 0$ without directly evaluating . . .
Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
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