15. Given A (X) define the characteristic function A : X {0, 1} by Suppose that A and B are subsets of X. (i) Prove that the fun
ction x A(x) B(x) (multiplication of integers) is the characteristic function of the intersection A B. (ii) Find the subset C whose characteristic function is given by
We know that <span>Since a circle is 360 degrees, then 360</span>°-----------> 100% <span>x </span>°----------> <span>15% </span>x=15*360/100-----> x=54°
