154 results.
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Question in Bill's workspace
Find $\displaystyle \int \sin(x)(a+ b\cos(x))^{m}\;dx$
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Question in Bill's workspace
Find $\displaystyle \int\frac{ax+b}{(1-x^2)^{1/2}} \;dx$. Solution involves inverse trigonometric functions.
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Question in Bill's workspace
Find $\displaystyle \int \frac{c}{\sqrt{a-bx^2}}\;dx$. Solution involves the inverse trigonometric function $\arcsin$.
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Question in Bill's workspace
Find $\displaystyle \int ae ^ {bx}+ c\sin(dx) + px ^ {q}\;dx$.
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Question in Bill's workspace
Find $\displaystyle \int (ax+b)\cos(cx+d)\; dx $ and hence find $\displaystyle \int (ax+b)^2\sin(cx+d)\; dx $
Also two other questions on integrating by parts.
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Question in Bill's workspace
Solve for $x$: $a\cosh(x)+b\sinh(x)=c$. There are two solutions for this example.
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Question in Bill's workspace
Differentiate the following functions: $\displaystyle x ^ n \sinh(ax + b),\;\tanh(cx+d),\;\ln(\cosh(px+q))$
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Question in Bill's workspace
Find $\displaystyle \int\cosh(ax+b)\;dx,\;\;\int x\sinh(cx+d)\;dx$
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Question in Bill's workspace
Find (hyperbolic substitution):
$\displaystyle \int_{b}^{2b} \left(\frac{1}{\sqrt{a^2x^2-b^2}}\right)\;dx$ -
Question in Bill's workspace
Differentiate $ \sin(ax+b) e ^ {nx}$.
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Question in Bill's workspace
Differentiate $x^m\cos(ax+b)$
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Question in Bill's workspace
Differentiate $ (a+bx) ^ {m} \sin(nx)$
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Question in Bill's workspace
Differentiate the function $(a + b x)^m e ^ {n x}$ using the product rule.
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Question in Bill's workspace
Differentiate the function $f(x)=(a + b x)^m e ^ {n x}$ using the product rule. Find $g(x)$ such that $f\;'(x)= (a + b x)^{m-1} e ^ {n x}g(x)$.
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Question in Bill's workspace
The derivative of $\displaystyle x ^ {m}(ax^2+b)^{n}$ is of the form $\displaystyle x^{m-1}(ax^2+b)^{n-1}g(x)$. Find $g(x)$.
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Question in Bill's workspace
Differentiate $\displaystyle \ln((ax+b)^{m})$
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Question in Bill's workspace
Differentiate
\[ \sqrt{a x^m+b})\]
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Question in Bill's workspace
Differentiate $\displaystyle e^{ax^{m} +bx^2+c}$
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Question in Bill's workspace
Differentiate the following functions: $\displaystyle x ^ n \sinh(ax + b),\;\tanh(cx+d),\;\ln(\cosh(px+q))$
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Question in Bill's workspace
Differentiate $\displaystyle \cos(e^{ax}+bx^2+c)$.
Contains a video solving a similar example.
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Question in How-tos
The custom function
rectangle(width,height)draws a rectangle with the given dimensions, along with some labels. -
Question in Julie's workspace
$X \sim \operatorname{Binomial}(n,p)$. Find $P(X=a)$, $P(X \leq b)$, $E[X],\;\operatorname{Var}(X)$.
rebelmaths
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Question in Christian's workspace
Write down the Newton-Raphson formula for finding a numerical solution to the equation $e^{mx}+bx-a=0$. If $x_0=1$ find $x_1$.
Included in the Advice of this question are:
6 iterations of the method.
Graph of the NR process using jsxgraph. Also user interaction allowing change of starting value and its effect on the process.
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Question in Content created by Newcastle University
Find the stationary points of the function: $f(x,y)=a x ^ 3 + b x ^ 2 y + c y ^ 2 x + dy$ by choosing from a list of points.
Inputting the values given into the partial derivatives to see if 0 is obtained is tedious! Could ask for the factorisation of equation 1 as the solution uses this. However there is a problem in asking for the input of the stationary points - order of input and also giving that there is two stationary points.
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Question in Content created by Newcastle University
A graphical approach to aiding students in writing down a formal proof of discontinuity of a function at a given point.
Uses JSXgraph to sketch the graphs and involves some interaction/experimentation by students in finding appropriate intervals.
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Question in Content created by Newcastle University
No description given
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Question in Content created by Newcastle University
Given a discrete random variable $X$ find the expectation of $1/X$ and $e^X$.
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Question in Content created by Newcastle University
Given sum of sample from a Normal distribution with unknown mean $\mu$ and known variance $\sigma^2$. Find MLE of $\mu$ and one of four functions of $\mu$.
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Question in Content created by Newcastle University
Given a PDF $f(x)$ on the real line with unknown parameter $t$ and three random observations, find log-likelihood and MLE $\hat{t}$ for $t$.
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Question in Content created by Newcastle University
Approximating integral of a linear function by Riemann sums . Includes an interactive graph in Advice showing the approximations given by the upper and lower sums and how they vary as we increase the number of intervals.