No real solutions, because for all real numbers the square of number is greater or equal 0.
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2 answers:
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No real solutions, because for all real numbers the square of number is greater or equal 0.
Given:
and
.
To find:
The combinations without repetition are possible if and
.
Solution:
Combination of selecting r item from total n items is:
We have and
. By using the above formula, we get
Therefore, the correct option is D.