Write an equation for f(x), given that the derivative of f \left( x \right) is \dfrac{1}{x}.
Find the primitive function of the following:
Find the following indefinite integrals:
Find the exact value of the following definite integrals:
Consider the function y = x \ln x - x.
Find an expression for y'.
Hence find \int \ln x \text{ } dx.
Find the exact value of \int_{\sqrt{e}}^{e} \ln x \text{ } dx.
Consider the function y = x^{2} e^{x}.
Find an expression for \dfrac{dy}{dx}.
Hence find \int x \left( 2+ x \right) e^{x} \text{ } dx.
Consider the function f(x) = \left( \ln x \right)^{2}.
Find an expression for f'\left( x \right) .
Hence evaluate \int_{\sqrt{e}}^{e} \dfrac{ \ln x}{x} \text{ } dx.
Consider the function y = 2 x^{2} \ln x - x^{2}.
Show that y' = 4x \ln x.
Hence find the primitive function of x \ln x.
Consider the function y = \ln \left( \ln x \right).
Find an expression for y'.
Hence find the primitive function of \dfrac{1}{x \ln x}.
Given that \int_{0}^{2} \dfrac{e^{x}}{e^{x} + 3} \, dx = \ln k, find the exact value of k.
Consider the function y = \dfrac{2}{x}.
Sketch a graph of the function.
Find the exact area bounded by the curve, the x-axis, and the lines x = 2 and x = 3.
Consider the function y = \dfrac{1}{x - 2}.
Sketch a graph of the function.
Find the exact area bounded by the curve, the x-axis, and the lines x = 3 and x = 5.
Consider the function y = \dfrac{1}{x + 3}.
Sketch a graph of the function.
Find the exact area bounded by the curve, the x-axis, and the lines x = 2 and x = 4.
Consider the function y = \dfrac{1}{2 x + 5}.
Sketch a graph of the function.
Find the exact area enclosed by the curve, the x-axis, and the lines x = 3 and x = 4.
Consider the function y = \dfrac{1}{4 - 3 x}.
Sketch a graph of the function.
Find the exact area enclosed by the curve, the x-axis, and the lines x = 3 and x = 5.
Consider the function y = \dfrac{2}{3 x + 5}.
Sketch a graph of the function.
Find the exact area enclosed by the curve, the coordinate axes and the line x = 4.
Find the exact area enclosed by the function f \left( x \right) = \dfrac{x}{x^{2} + 2}, the x-axis and the lines x = 2 and x = 4.
Find the exact area under the curve y = \dfrac{x + 5}{x^{2} + 10 x + 1} between x = 0 and x = 6.
Consider the function y = \ln 2 x.
State the domain of the function.
Find the derivative function, y'.
For what values of x is y' positive?
Find the exact area bounded by the curve y = \ln 2 x, the x-axis and the line x = e.
Find the equation of the curve f \left( x \right), given the derivative function and a point on the curve:
f' \left( x \right) = \dfrac{x}{x^{2} - 7}, and f \left( 4 \right) = \ln 3.
f' \left( x \right) = \dfrac{5}{5 x - 4}, and the point \left(3, \ln 11\right).
f' \left( x \right) = \dfrac{2}{x +1}, and the point \left(0, 1\right).
f'(x) = \dfrac{x^2+x+1}{x} and f \left( 1 \right)= 1\dfrac{1}{2}
Find f \left( x \right) given that f''\left( x \right) = \dfrac{1}{x^2} , f'\left( 1 \right) = 0 and f \left( 1 \right) = 3.
Hence find the exact value of f \left( e \right).
Consider y' = \dfrac{ 2x + 5 }{ x^{2} + 5x + 4}, where function y has a y-intercept of \, 1 + \ln 4.
Find the exact value of y when x = 1.
Consider the derivative function y' = \dfrac { 2 + x }{x}.
Find function y, given that it passes through \left(1, 1\right).
Find the exact value of y, when x = 2.
Find g \left( x \right) given that g' \left( x \right) = \dfrac{2x^{3} - 3x - 4}{x^{2}} and g \left( 2 \right) = -3 \ln 2 .
A particle moves so that its velocity, in metres per second, over time t is given by:
v = \dfrac{2t+3}{t^2+3t+1}If the particle's initial displacement, x, is 5 metres, find x when t = 3 seconds. Round your answer to two decimal places.
A circus tent is 7 \text{ m} high and has a radius of 6 \text{ m}. The equation to describe the curved roof of the tent is y = \dfrac{7}{x + 1}, as shown in the diagram:
Calculate the exact cross-sectional area of the tent.
A group of rhinos are introduced into a reserve park and their population is observed over time. The rate of growth of the number of rhinos is found to be modelled by: \dfrac{dP}{dt} = \dfrac{4 t}{t^{2} + 2} where P is the population of rhinos in the reserve, t years after the program started.
Considering the graph of \dfrac{dP}{dt}, describe the rate of change of the population of rhinos.
Use the model to predict the total whole number of rhinos that were born in the reserve between 2 and 4 years after the program started.