Show that: (a) n∪i=1 Ai is closed if all Ai the are;

b) ∩i∈∧ Ai

is closed if all the Ai are;

c) ∞∩i=1 ki

is not empty if the Ki are non empty closed intervals in R and

Ki ⊇ Ki+1 for all i ≥ 1. (Ai ⊆ Rm for all i).

you answer is a

step-by-step explanation:

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

you need to rotate this triangle about the origin 270 degrees clockwise to create the full square.