Question

fill in the symbol C is (x:x is a cricle in the plane ) ................( x:x is a cricle in the same plane with radius 1 unit)​

Answer 1

Step-by-step explanation:

A={x:x is a cricle in the plane }

B={x:x is a cricle in the same plane with radius 1 unit}

B C A

I.e B is a subset of A

as all the circles of radius 1 unit will also be the counted as a circle in that plane.

Or in other words we can say that all the elements of set B are also the elements of set A

But

A is not a subset of B