Question

Is n(A-B) = n(A) - n(B) ? (chapter 2 relations and functions class 11)
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Answer 1

Answer:

It is a formula of 9th std math's

Answer 2

ANSWER :

NO THE STATEMENT IS FALSE

EXPLANATION ::

Since A - B = A - ( A ∩ B)

SO

n(A - B) = n( A) - n( A ∩ B)

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