Math, asked by aStudentofIndia, 1 year ago

Hi
I will mark as brain list
Please tell me answer of this question in easy way but Step-by-step explanation

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Answered by kalyaniprasad8

2

By general formula of sets, we know

n(A∪B) = n(A) + n(B) - n(A∩B)

n(B) = n(A∪B) - n(A) + n(A∩B) = 29 - 15 + 7= 21

kalyaniprasad8: Mark brainliest

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