182 results.
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Question in Content created by Newcastle University
Find $\displaystyle \int x\sin(cx+d)\;dx,\;\;\int x\cos(cx+d)\;dx $ and hence $\displaystyle \int ax\sin(cx+d)+bx\cos(cx+d)\;dx$
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Question in Content created by Newcastle University
Integrating by parts.
Find $ \int ax\sin(bx+c)\;dx$ or $\int ax e^{bx+c}\;dx$
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Question in Content created by Newcastle University
$f(x,y)$ is the PDF of a bivariate distribution $(X,Y)$ on a given rectangular region in $\mathbb{R}^2$. Write down the limits of the integrations needed to find $P(X \ge a)$, the marginal distributions $f_X(x),\;f_Y(y)$ and the conditional probability $P(Y \le b|X \ge c)$
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Question in Content created by Newcastle University
The random variable $X$ has a PDF which involves a parameter $k$. Find the value of $k$. Find the distribution function $F_X(x)$ and $P(X \lt a)$.
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Question in Content created by Newcastle University
Differentiate $\displaystyle \frac{ax+b}{cx+d}$.
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Question in Content created by Newcastle University
An object moves in a straight line, acceleration given by:
$\displaystyle f(t)=\frac{a}{(1+bt)^n}$. The object starts from rest. Find its maximum speed.
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Question in Content created by Newcastle University
Solve for $x(t)$, $\displaystyle\frac{dx}{dt}=\frac{a}{(x+b)^n},\;x(0)=0$
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Question in Content created by Newcastle University
Finding the modulus of four complex numbers; includes finding the modulus of a product, a power and a quotient.
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Question in Content created by Newcastle University
$f(X)$ and $g(X)$ as polynomials over the rational numbers $\mathbb{Q}$.
Find their greatest common divisor (GCD) and enter as a normalized polynomial.
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Question in Transition to university
A graph shows both the speed and acceleration of a car. Identify which line corresponds to which measurement, and calculate the acceleration during a portion of time.
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Question in Transition to university
A simple situational question about a box of chocolates, asking how many of each type there are, what percentage of the box they represent, the probability of picking one and ratios of different types.
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Question in Transition to university
Given a geometric sequence, find the common ratio (negative in this question), write down the formula for the nth term and use it to calculate a given term.
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Question in Transition to university
Use a piecewise linear graph of speed against time to find the distance travelled by a car.
Finally, use the total distance travelled to find the average speed.
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Question in John's workspace
Using the reduction formulas for products of powers or sin and cosine
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Question in Jamie's workspace
Practice calculating concentration of solutions
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Question in Jamie's workspace
Example of a dilution calculation involving mass concentration and molarity calculations.
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Question in Jamie's workspace
Working backwards from the concentration of a diluted solution to find the concentration of "stock" solution.
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Question in Jamie's workspace
Practice at a longer calculation to work out how much glucose is needed to make a solution of a given concentration.
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Question in Jamie's workspace
Practice calculating number of moles of a substance given the concentration and volume of a solution.
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Question in John's workspace
A question to test integration by parts in a "pre-Fourier series" setting.
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Question in Bill's workspace
Newton-Raphson numerical method question to solve $g(x)=0$
Includes a graph of the function $g(x)$ in Advice using Jsxgraph.
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Question in Julie's workspace
Find $\displaystyle \int x(a x ^ 2 + b)^{m}\;dx$
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Question in Julie's workspace
Find $\displaystyle \int \frac{2ax + b}{ax ^ 2 + bx + c}\;dx$
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Question in Julie's workspace
Find $\displaystyle \int \sin(x)(a+ b\cos(x))^{m}\;dx$
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Question in Julie's workspace
Find $\displaystyle \int \frac{a}{(bx+c)^n}\;dx$
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Question in Julie's workspace
Find $\displaystyle \int ae ^ {bx}+ c\sin(dx) + px ^ {q}\;dx$.
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Question in Numeracy Questions
Using three -part ratio and amounts of each colour available, calculate how much of a particular shade of paint can be made.
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Question in Julie's workspace
Rotate $y=a(\cos(x)+b)$ by $2\pi$ radians about the $x$-axis between $x=c\pi$ and $x=(c+2)\pi$. Find the volume of revolution.
rebelmaths
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Question in Julie's workspace
Finding areas under graphs using definite integration.
rebelmaths
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Question in Julie's workspace
Find $\displaystyle \int\frac{ax+b}{(1-x^2)^{1/2}} \;dx$. Solution involves inverse trigonometric functions.
rebelmaths