Math, asked by prashuu369, 7 months ago

if a is subset to b and n(a)=4,n(b)=7,then n( a-b)=?​

Answers

Answered by vivekgoenka01
0

Step-by-step explanation:

for eg =

a=( 1 ,2,3 ,4) and n(a) = 4

b= ( 1,2,3,4,5,6,7 ) and n(b) =7

a-b =( 5,6,7 ) and n (a-b) = 3

answer is 3

Answered by 1harsh1pandey123
0

Answer:

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