C-02-Q090mediumsingle_mcq

If $A = \{a, b\}$ , then $P(A)$ has how many elements?

a $2$
b $3$
c $4$
d $5$

ব্যাখ্যা

The power set $P(A)$ contains all subsets of $A$ , and a set with $n$ elements has $2^n$ subsets. Since $A$ has $2$ elements, $P(A)$ has $2^2 = 4$ elements.

এই অধ্যায়ের আরও প্রশ্ন

C-02-Q091If a set has elements, its power set has—
C-02-Q092If , the number of elements in is—
C-02-Q093If , the number of elements in is—
C-02-Q094If and , the number of elements of is—
C-02-Q095For an ordered pair, the pair equals if and only if—
C-02-Q096and are—
C-02-Q097If , then and are—
C-02-Q098If , then is—
C-02-Q099If , then is—
C-02-Q100The Cartesian product is defined as—

Sets and Functions — সব প্রশ্ন দেখুন (153টি) →

If A={a,b}A = \{a, b\}A={a,b}, then P(A)P(A)P(A) has how many elements?

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

If A={a,b}A = \{a, b\}A={a,b}, then P(A)P(A)P(A) has how many elements?

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

If $A = \{a, b\}$ , then $P(A)$ has how many elements?

If $A = \{a, b\}$ , then $P(A)$ has how many elements?