यदि $A = \{3, 6, 9, 12, 15, 18, 21\}$,$B = \{4, 8, 12, 16, 20\}$,$C = \{2, 4, 6, 8, 10, 12, 14, 16\}$,और $D = \{5, 10, 15, 20\}$ है,तो $C - B$ ज्ञात कीजिए।

  • A
    $\{2, 6, 10, 14\}$
  • B
    $\{2, 4, 6, 8, 10, 12, 14, 16\}$
  • C
    $\{4, 8, 12, 16\}$
  • D
    $\{2, 6, 10, 14, 18\}$

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यदि $A=\{3, 5, 7, 9, 11\}, B=\{7, 9, 11, 13\}, C=\{11, 13, 15\}$ और $D=\{15, 17\}$ है,तो $A \cap (B \cup C)$ ज्ञात कीजिए।

यदि $A$ और $B$ असंयुक्त समुच्चय नहीं हैं,तो $n(A \cup B)$ किसके बराबर है?

यदि $A$ और $B$ विसंघित (disjoint) समुच्चय हैं,तो $n(A \cup B) = $

मान लीजिए $A = \{ \theta : 2\cos^2 \theta + \sin \theta \le 2 \}$ और $B = \{ \theta : \frac{\pi}{2} \le \theta \le \frac{3\pi}{2} \}$,तो $A \cap B$ है

यदि $A = \{1, 2, 3, 4\}$,$B = \{3, 4, 5, 6\}$,$C = \{5, 6, 7, 8\}$ और $D = \{7, 8, 9, 10\}$ है,तो $A \cup B$ ज्ञात कीजिए।

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