Podcast
Questions and Answers
Consider the integral $\int_0^1 \frac{3x^2 + 2x - 1}{\sqrt{x}} dx$. Which of the following represents the correct value of this definite integral?
Consider the integral $\int_0^1 \frac{3x^2 + 2x - 1}{\sqrt{x}} dx$. Which of the following represents the correct value of this definite integral?
- $\frac{8}{15}$
- $\frac{16}{5}$ (correct)
- $\frac{68}{15}$
- $\frac{28}{15}$
- $\frac{104}{105}$
A bag contains g green beans, r red beans, and b blue beans. If three beans are chosen at random without replacement, what is the probability that exactly two of the three beans are blue?
A bag contains g green beans, r red beans, and b blue beans. If three beans are chosen at random without replacement, what is the probability that exactly two of the three beans are blue?
- $\frac{3b(b-1)(r+g)}{(g+r+b)^3}$
- $\frac{b(b-1)(r+g)}{(g+r+b)(r+g+b-1)(r+g+b-2)}$
- $\frac{3b(b-1)(r+g)}{(g+r+b)(r+g+b-1)(r+g+b-2)}$ (correct)
- $\frac{b(b-1)(r+g)}{(g+r+b)^3}$
- $\frac{3b^2(r+g)}{(g+r+b)(r+g+b-1)(r+g+b-2)}$
- $\frac{b^2(r+g)}{(g+r+b)^3}$
A function is defined as $f(x) = \frac{x^2 - 4}{x - 2}$ for $x \neq 2$. What value should be assigned to $f(2)$ to make $f(x)$ continuous at $x = 2$?
A function is defined as $f(x) = \frac{x^2 - 4}{x - 2}$ for $x \neq 2$. What value should be assigned to $f(2)$ to make $f(x)$ continuous at $x = 2$?
- Undefined
- 2
- 1
- 0
- 4 (correct)
Given the function $g(x) = x^3 - 3x^2 + 2x$, determine the interval(s) where $g(x)$ is increasing.
Given the function $g(x) = x^3 - 3x^2 + 2x$, determine the interval(s) where $g(x)$ is increasing.
A geometric sequence has a first term of 3 and a common ratio of 2. What is the sum of the first 5 terms of this sequence?
A geometric sequence has a first term of 3 and a common ratio of 2. What is the sum of the first 5 terms of this sequence?
Determine the derivative of the function $f(x) = \ln(\sin(x))$, where $0 < x < \pi$.
Determine the derivative of the function $f(x) = \ln(\sin(x))$, where $0 < x < \pi$.
If $\tan(\theta) = \frac{3}{4}$ and $\theta$ is in the third quadrant, find the value of $\cos(\theta)$.
If $\tan(\theta) = \frac{3}{4}$ and $\theta$ is in the third quadrant, find the value of $\cos(\theta)$.
Determine the area of the region enclosed by the curves $y = x^2$ and $y = 2x$.
Determine the area of the region enclosed by the curves $y = x^2$ and $y = 2x$.
Solve the differential equation $\frac{dy}{dx} = xy$ with the initial condition $y(0) = 2$. What is the solution $y(x)$?
Solve the differential equation $\frac{dy}{dx} = xy$ with the initial condition $y(0) = 2$. What is the solution $y(x)$?
Given the vectors $\vec{a} = 2\mathbf{i} - \mathbf{j} + 3\mathbf{k}$ and $\vec{b} = -\mathbf{i} + 5\mathbf{j} - 2\mathbf{k}$, find the dot product $\vec{a} \cdot \vec{b}$.
Given the vectors $\vec{a} = 2\mathbf{i} - \mathbf{j} + 3\mathbf{k}$ and $\vec{b} = -\mathbf{i} + 5\mathbf{j} - 2\mathbf{k}$, find the dot product $\vec{a} \cdot \vec{b}$.
Flashcards
Definite Integral
Definite Integral
Evaluate the definite integral of (3x^2 + 2x - 1) / √x from 0 to 1.
Probability
Probability
The probability of choosing exactly two blue beans out of three, without replacement, from a bag containing green, red, and blue beans.
Study Notes
- This is the Engineering and Science Admissions Test (ESAT) Mock Paper 2, specifically Part E focusing on Mathematics 2.
- The test duration is 40 minutes.
- Candidates will need a separate answer sheet, and should ensure they have all three pages.
- Name should be written on each page of the answer sheet.
- Candidates must complete PART A Mathematics 1
- Candidates then pick 2 parts from: Biology, Chemistry, Physics. Mathematics 2
- Parts have 27 multiple-choice questions, with 40 minutes to complete.
- There are no penalties for incorrect answers.
- Each question is worth one mark.
- Candidates must complete the answer sheet within the time limit.
- Dictionaries and calculators are not allowed.
Question 1
- Find the value of the definite integral from 0 to 1 of (3x^2 + 2x - 1) / √x dx.
- The possible answers are: 16/5, -28/15, 104/105, 8/15, 68/15.
Question 2
- A bag contains g green beans, r red beans, and b blue beans.
- Three beans are chosen at random without replacement.
- The probability of choosing exactly two blue beans is to be determined.
- Options: b²(r+g) / (g+r+b)³, 3b²(r+g) / ((g+r+b)(r+g+b-1)(r+g+b-2)), b(b-1)(r+g) / ((g+r+b)(r+g+b-1)(r+g+b-2)), 3b(b-1)(r+g) / (g+r+b)³, 3b(b-1)(r+g) / ((g+r+b)(r+g+b-1)(r+g+b-2)), b(b-1)(r+g) / (g+r+b)³.
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