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ABC is a triangle right-angled at C. If ...

ABC is a triangle right-angled at C. If p is the length of the perpendicular from C to AB and a, b, c are the sides, then which one of the following is correct ?

A

`A-B =A -(A cap B)`

B

`B-A = B cap A`

C

`A cap B =(A-B) cap B`

D

All of these

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The correct Answer is:
D
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