For two independent events $A$ and $B$, $P(A) = 0.5$ and $P(B) = 0.7$. Find $P(A' \cap B')$.
If A = \{x \mid 0 < x < 1\} and B={x∣14≤x≤3}B = \{x \mid \frac{1}{4} \leq x \leq 3\}B={x∣41≤x≤3} then find A∩BA \cap BA∩B.