Psychology, asked by geetasharma13171, 2 months ago

Kavi ne Jeet har ko shuddh kyon bola hai​

Answers

Answered by XxRonakxX
1

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Jeet har to hoti rehti h hame kabhi bhi nirash nhi hone chaiye mehnat karta rehna chaiye

Answered by llMinniell
13

Answer:

We have to prove that : (A-B) U (B-A) = (A∪B) - (A∩B)

Proof:

Let, x ∈ (A-B) U (B-A)

⇒ x ∈ (A-B) or x ∈ (B-A)

⇒ x ∈ A But x ∉ B or x ∈ B but x ∉ A,

⇒ x ∈ A or x ∈ B

⇒ x ∈ (A∪B)

⇒ x ∈ (A∪B) - (A∩B)

Since here x represents the arbitrary element of the set (A-B) U (B-A).

Thus, (A-B) U (B-A) = (A∪B) - (A∩B

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