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Find the volume of revolution when the area B is rotated 2 pi radians about the x axis

First must recall the formula, of pi multiplied by the integral of y 2 After this, the correct integration should be applied, using an appropriate method that the student has learnt The correct limits used i...
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Answered by Louis S. • Maths tutor
9915 Views

How best to answer a question on how negative externalities lead to market failure.

When answering a question of this kind I like to use te acronym NOPOWA to ensure I hit all the key points. It is always good to draw the graph showing the negative externality to help illustrate your answer ...
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Answered by Erin T. • Economics tutor
5962 Views

How can globalisation increase domestic competitiveness?

An increase in globalisation means that there are more companies competing for a domestic companies consumers increasing the competition they have to face.This then means that those ompanies have an incentiv...
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Answered by Erin T. • Economics tutor
3115 Views

Solve the following, giving your answers in terms of ln a: 7 sechx - tanhx =5

7sechx - tanhx = 5 7/coshx - sinhx/coshx = 5 7 - sinhx = 5 cosh x 7 - 0.5(e x - e -x ) = 2.5(e x + e -x ) 7 -0.5e x + 0.5e -x = 2.5e x + 2.5e -x 0 = 3e x - 7 + 2e -x 0 = 3e 2x - 7e x + 2 0 = (3e x - 1)(e x -...
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8268 Views

Differentiate the following: 3/2 x^(3/4) + 1/3 x^(-1/4)

In simple differentiation, we can use the fact that if y= x^n, dy/dx is equal to nx^(n-1). In other words, multiply the x term by the power, then decrease the power by 1. Here we have 2 terms so approach the...
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Answered by Alex W. • Maths tutor
3877 Views