Circular Measurement of Angle
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Q. If X and Y are two sets and X′ denotes the complement of X, then X∩(X∪Y)′ = ___.
- X
- Y
- ϕ
- X∩Y
Q.
The circular wire of diameter 10cm is cut and placed along the circumference of a circle of diameter 1 metre. The angle subtended by the wire at the centre of the circle is equal to