SECTION B (60 marks) Candidates must attempt THREE questions being careful to number them B9 to B18. B9. (a) Find zdz where the contour P is the curve y = r-x² joining the points (-1,-2) and (1,0) . (b) Evaluate the integral [8] z sin 2z where F is the contour |z- 1 = 1. [12] B10. (a Evaluate the indefinite integral d.x a4 + a4 where a > 0. (b) Show that (10 de 2 OP- a+b cos 0 for real numbers a and b such that la -62

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.