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Answer: (a) IV (b) positive (c) (d) C (e)
<u>Step-by-step explanation:</u>
a) - = , which is located in Quadrant IV <em>per the Unit Circle. </em>
b) sec is . Cos is the x-coordinate. The x-coordinate inQuadrant IV is positive.
c) the reference angle is the angle from to 2π =
d) since the angle is below the x-axis and the reference angle is, then the angle is equal to )
e) sec = ⇒ sec = = = =
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Answer: (a) (b) (0, -1) (c) A (d) -1
a) - = - =
b) is on the Unit Circle at (0, -1)
c) sin = which equals on the Unit Circle.
d) sin is the y-coordinate. sin = -1
Step-by-step explanation:
First, we need to add up the x.
We know that 4+8 = 12, so
Now, equating it to y,
Now, if I multiply on both sides,
I get,
Now, as 12 got cancelled , I got the final answer as
Hope it helps :)