2197 results for "find".
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Question in Bill's workspace
Find the stationary points of a cubic which has 2 turning points.
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Question in Bill's workspace
Differentiate $f(x)=x^{m}\sin(ax+b) e^{nx}$.
The answer is of the form:
$\displaystyle \frac{df}{dx}= x^{m-1}e^{nx}g(x)$ for a function $g(x)$.Find $g(x)$.
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Question in Bill's workspace
Application of the Poisson distribution given expected number of events per interval.
Finding probabilities using the Poisson distribution.
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Question in Bill's workspace
Application of the binomial distribution given probabilities of success of an event.
Finding probabilities using the binomial distribution.
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Question in Bill's workspace
Given a random variable $X$ normally distributed as $\operatorname{N}(m,\sigma^2)$ find probabilities $P(X \gt a),\; a \gt m;\;\;P(X \lt b),\;b \lt m$.
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Question in Bill's workspace
Exercise using a given uniform distribution $X$, calculating the expectation and variance. Also finding $P(X \le a)$ for a given value $a$.
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Question in Bill's workspace
Question on the exponential distribution involving a time intervals and arrivals application, finding expectation and variance. Also finding the probability that a time interval between arrivals is less than a given period. All parameters and times randomised.
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Question in Bill's workspace
Dividing a cubic polynomial by a linear polynomial. Find quotient and remainder.
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Question in Bill's workspace
Find $\displaystyle \frac{a} {b + \frac{c}{d}}$ as a single fraction in the form $\displaystyle \frac{p}{q}$ for integers $p$ and $q$.
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Question in Bill's workspace
Given a table of the number of days in which sales were between £x1000 and £(x+1)1000 find the relative percentage frequencies of these volume of sales.
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Question in Bill's workspace
Given sample data find mean, standard deviation, median, interquartile range.
Note that there are different versions of the upper and lower quartiles, so you may want to include your own versions - see the user defined functions in the question.
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Question in Bill's workspace
Express $\log_a(x^{c}y^{d})$ in terms of $\log_a(x)$ and $\log_a(y)$. Find $q(x)$ such that $\frac{f}{g}\log_a(x)+\log_a(rx+s)-\log_a(x^{1/t})=\log_a(q(x))$.
There is a video included explaining the rules of logarithms by going through simplification of logs of numbers rather than algebraic expressions.
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Question in Bill's workspace
Find a regression equation.
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Question in Bill's workspace
Find a regression equation.
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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 $\displaystyle \int \frac{2ax + b}{ax ^ 2 + bx + c}\;dx$
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Question in Bill's workspace
Find $\displaystyle \int x(a x ^ 2 + b)^{m}\;dx$
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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 the polynomial $g(x)$ such that $\displaystyle \int \frac{ax+b}{(cx+d)^{n}} dx=\frac{g(x)}{(cx+d)^{n-1}}+C$.
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Question in Bill's workspace
Find $\displaystyle \int \frac{a}{(bx+c)^n}\;dx$
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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 $\displaystyle \int ax ^ m+ bx^{c/n}\;dx$.
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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
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 Hayley's workspace
Find eigenvalues and eigenvectors of $A$ $2 \times 2$ matrix.
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Question in Bill's workspace
Given vectors $\boldsymbol{A,\;B}$, find the angle between them.
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Question in Bill's workspace
Given vectors $\boldsymbol{A,\;B}$, find $\boldsymbol{A\times B}$
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Question in Bill's workspace
Given vectors $\boldsymbol{A}$ and $\boldsymbol{B}$, find their inner product.