Express cos(27pi/8) as a trigonometric function of an angle in quadrant i.

The equivalent trigonometric ratio in Quadrant I is

Step-by-step explanation:

The terminal side of is in the 3rd quadrant.

The principal angle is

In other words, the terminal side of  makes an acute angle of radian with the positive x-axis. Acute angles are in the first quadrant.

Since the cosine ratio is negative in the 3rd quadrant,

answer: 2 and 1

step-by-step explanation: got this question

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.