Question

If X and Y are two sets then x⋂(XUY)

Answer 1

Answer:

If X⊂Y, then X∪Y=Y and X∩Y=X

If Y⊂X, then X∪Y=X and X∩X=X

Let the circle has a center O and AB be a given line such that 

Let AB∥CD∥EF.

Where CD is a second ans EF is a tangent intersecting the circle at R.

Explanation

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