1.Set Theory
easy

 બે અલગ ગણો ન હોય તેવા ગણ  $A$ અને $B$ માટે  $n(A \cup B)$ =

A

$n(A) + n(B)$

B

$n(A) + n(B) - n(A \cap B)$

C

$n(A) + n(B) + n(A \cap B)$

D

$n(A)\,n(B)$

Solution

(b) $n(A \cup B) = n(A) + n\,(B) – n(A \cap B)$.

Standard 11
Mathematics

Similar Questions

Start a Free Trial Now

Confusing about what to choose? Our team will schedule a demo shortly.