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
1 answer:
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1) value of x =60
2) value of x = 3
Step-by-step explanation:
We need to use cross products to solve the proportions of x.
Solving:
So, value of x =60
So, value of x = 3
Keywords: Ratio and Proportions
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