Help me please idk how to do this
1 answer:
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Answer:
partitions.
Step-by-step explanation:
As we know if we have x number of elements we can arrange them in x! ways.
here we have 100 elements so we can arrange them in 100! ways.
Now if we have exactly three parts and 1,2 and 3 are in different parts then let consider 1 goes to part 1, 2 goes to part 2, and 3 goes to part 3. For the remaining 97 elements, we have three options for each element, thus we can arrange the remaining 97 elements in ways/partitions.
each of these partition will contain only three elements.
Answer:
Option (2) and (4) are correct.
and
are points on the unit circle.
Step-by-step explanation:
Given : Some points of circles.
We have to choose which points could be points on the unit circle.
We know, the equation of circle is
..........(1)
where r is radius of circle.
We check each point for x and y values on the equation of circle and see which point gives radius = 1
Thus,
1)
Put in LHS of (1) , we have,
Simplify, we have,
Thus, is not a point on the unit circle.
2)
Put in LHS of (1) , we have,
Simplify, we have,
Thus, is a point on the unit circle.
3)
Put in LHS of (1) , we have,
Simplify, we have,
Thus, is not a point on the unit circle.
4)
Put in LHS of (1) , we have,
Simplify, we have,
Thus, is a point on the unit circle.
Thus, and
are points on the unit circle.