A) for all sets a, b and c, construct an algebraic proof with reasons for the statement (a – b) u (b – c) = (aub) – (boc). (4 marks) b) for all sets a and b, prove that p(anb) = s(a)n (5 marks) (b), where p represents power set.

chicken chicken chicken

step-by-step explanation:

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

this answer is !