In this question you are asked to determine by substitution As a first step, ple

Question

In this question you are asked to determine by substitution As a first step, please enter a substitution that is appropriate for salving this problem Note. Do not move onto the next part until you have marked this part got it correct followed any further directions you might get during marking. u = What is the differential du of u in terms of x and dx Note. Your answer should be in the form: f(x)+ dx for some function f(x) of x. Also note. Answering this part More you have completed the previous part and got it correct, risks getting 0 for this part You have been warned!! du = Now enter the corresponding integral I in u resulting from your substitution. Your answer should depend only on u. Note. You win need to use the following syntax To enter g(u)du enter; S(g(u)du) Think of the letter S (note that it is capita lised) as a sty lised integral sign. Validate will display a correctly entered integral egression in the standard way. eg. try validating: S(5*u*du). I = Finally, evaluate fee integral I. Your answer should be back in terms of x I =

Explanation / Answer

u = (3) * sec t

du = (3) * sec t * tan t dt

S(6 / 3* (sec u)^2 * du )

(x^2 - 3)...........

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