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1.Set Theory
easy
જો $A = \{x, y\}$ તો $A$ ના ઘાતગણ મેળવો.
A
$\{ {x^x},\,{y^y}\} $
B
$\{ \phi,x, y\}$
C
$\{\phi, {x}, {2y}\}$
D
$\{\phi, x, y, \{ x, y \} \}$
Solution
The power set is all possible subsets of a set.
Thus power set of $A =\{ x , y \}$ is $\{\phi, x , y ,\{ x , y \}\}$
Standard 11
Mathematics