Answer:
but why................m..
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
Answer:
(a) The government
Explanation:
official statistics provide the quantitative basis for the development and monitoring of government social and economic policies