if and only if it is closed and bounded.
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A set S of real numbers is called compact if every sequence in S has a subsequence that converges to an element again contained in S.
4 Mayflower (3) May-Flow-R Compact (2) Com-Pact. (5) total both words.
A = pi * r^2 A = pi * 6^2 A = 36pi If you are using 3.14 for pi, then ANS : D.) 113.04 cm^2
f(x) = x^{2} is a continuous function on the set R of real numbers, and (-1, 1) is an open set in R, but f(-1, 1) = [0, 1), and [0, 1) is not an open set in R. So, f is not an open function on R.
The set of irrational numbers is NOT denoted by Q.Q denotes the set of rational numbers. The set of irrational numbers is not denoted by any particular letter but by R - Q where R is the set of real numbers.