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2.Relations and Functions
easy
यदि $P, Q$ तथा $R, A$ के उपसमुच्चय हैं, तब $R × (P\cup Q).$ =
A
$(R × P) \cap (R × Q)$
B
$(R \times Q) \cap (R \times P)$
C
$(R \times P) \cup (R \times Q)$
D
इनमें से कोई नहीं
Solution
$R \times {({P^c} \cup {Q^c})^c} = R \times [{({P^c})^c} \cap {({Q^c})^c}]$ = $R \times (P \cap Q) = (R \times P) \cap (R \times Q)$ = $(R \times Q) \cap (R \times P)$
Standard 11
Mathematics
