Question

4. Let S = {x:x € N,5 < x < 20}, X = {x:x € N, 10 < x < 20}, Y = {x:x € N, 2x < 30). Find
a. n(XUY) b. n(
XY)
c. n(X')
d. n(X'Y')
e, n(XU Y) f. n(X-Y)
Verify that n(XU Y) = n(X) + n( Y) - n(Xn Y).​

Answer 1

Answer:

$21051 + 3 \frac{ \sqrt{x \frac{y(x \frac{ \frac{ \frac{ \frac{ { \frac{tcmdd \gamma \beta \cos( \alpha e \cot( \cos(mmjdavg) ) ) }{?} }^{2} }{?} }{?} }{?} }{?} }{?} } }{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?}$

the only one of the best answer

Answer 2

Answer:

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