Question

If n(X)=200,x)=300 and n(XUY)=400

then
Find the value of n(XnY)
step by step
plz no scam or links

Answer 1

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Answer 2

`{ \boxed{ \bf{formular : { \tt{n(X{ \small{U}Y) = n(X) + n(Y) - n(X{ \small{n}Y)}}}}}}} \\ n(X{ \small{n}}Y) = (200 + 300) - 400 \\ = 500 - 400 \\ { \boxed{n(X{ \small{n}}Y) = 100}} \\ \\ { \underline{ \blue{ becker \: jnr}}}`