Implementation of firewall
installation of anti-virus software
It is C. because Face due to labor strikes
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the answer is
So species will not die out. Genetic material must be copied for overall organism reproduction.
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Answer:
A
Explanation:
You must know the basics of Trigonometry to solve this.
First, you must know that

lies in the second quadrant, so sin is negative.
Next, since
pi/4, is the reference angle of 3 pi/4, this means that we can set up a right triangle with pi/4 as an angle, we get


So the answer is A