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First must recall the formula, of pi multiplied by the integral of y²

After this, the correct integration should be applied, using an appropriate method that the student has learnt

 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 ans...

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 incen...

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 +...

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 ...