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5. Which of the following sets is uncountable? Circle the correct answer. • P(N) • Z • [0, 1] ng
8. Which function is an injection? Circle the correct answer f: RR f(x) = r2 g: QQ g(x) = 22 h: Z+Z h(x) = r p: NN p() = 22
10. Which pair of sets have the same cardinality ? Circle the correct answer. • N and R • P(Z) and Q • R and the interval (0,1) • Rand (0.1) nQ