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Suppose A, B and C are three sets such t...

Suppose A, B and C are three sets such that `A Delta B = phi`, then `A Delta (B Delta C)` is equal to

A

`phi`

B

C

C

A

D

B

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • Suppose A, B and C are three sub-sets of a universal set U. If (A cup C) cap (B cup C') = phi , then

    A
    `A cup B =C`
    B
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  • If A, B and C are the angles of a triangle, then tan(B/4+C/4) equals to

    A
    `(cos(A/2))/(1+sin(A/2))`
    B
    `(1+sin(A/2))/(cos(A/2))`
    C
    `(cos(A/2))/(1-sin(A/2))`
    D
    `(1-sin(A/2))/(cos(A/2))`
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    A
    `(cos(A/2))/(1+sin(A/2))`
    B
    `(1+sin(A/2))/(cos(A/2))`
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    D
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