Math, asked by sangeetha37, 1 month ago

> Verify n (AUB)= n (A)+ (B) - N ANB​

Answers

Answered by suhail2070
0

Step-by-step explanation:

let \:  \:  \:  \:  \:  \: a = 2 \:  \:  \:  \:  \: 1 \:  \:  \:  \: 4 \\  \\ b = 2 \:  \:  \:  \: 4 \:  \:  \: 9 \\  \\  \\ then \:  \:  \:  \: a \:  \:  \:  \: union \:  \:  \: b = 2 \:  \:  \:  \:1 \:  \:  \:  \:  \: 9 \:  \:  \:  \:   \:  \:  \: 4 \\  \\  \\  \\ and \:  \:  \: a  \:  \:  \:  \:  \: \: intersection \:  \:  \:  \: b = 2 \:  \:  \:  \:  \:  \:  \:  \: 4 \\  \\  \\  \\  \\ therefore \:  \:  \: n(a) = 3 \\  \\  \\ n(b) = 3 \\  \\  \\  \\ n(a \:  \:  \: union \:  \:  \: b) = 4 \\  \\ n(a \:  \:  \: intersection \:  \:  \: b) = 2 \\  \\  \\  \\ therefore \:  \:  \:  \:  \: n(a \:  \:  \: union \:  \:  \: b) = n(a) + n(b) - n(a \:  \:  \:  \: intersection \:  \:  \: b) \\  \\  or\\ 4 = 3 + 3 - 2

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