Given:
The sets are and
.
To find:
Whether A and B are disjoint sets or not.
Solution:
Two sets are called disjoint sets if there are no common elements between them.
We have,
Clearly, there is not common elements between the set A and set B.
Therefore, the sets A and B are disjoint sets.
Answer:
Given the expression:
Let the value of the given expression in radians be
then;
......[1]
We know the value of
Substitute the given value in [1] we have;
Since, the value of is 0, therefore, the value of
is in the form of:
; where n is the integer.
At n =0, 1 and 2, {Since, n is the integer}
Value of and
therefore, the answer in radians either or