cos (arctan (1))=
arctan (1) = 45 take it to the third quadrant = add 180 = 225
cos (225) = -1 / sqrt(2)
never leave a sqrt in the denominator
= -1 /sqrt(2) * sqrt(2)/sqrt(2)
= -sqrt(2)/2
sin (arccos (1/2)
arccos (1/2) = 60 take it to the 4th quadrant -60 degrees
sin (-60)
- sin 60
- sqrt(3)/2
Answer:
Quadrant IV, or the fourth quadrant.
Step-by-step explanation:
Plot your points, first plotting 5, then plotting -2.
Answer:
Obtuse
Step-by-step explanation:
CEB is and obtuse angle because it is wider than a right angle ( example: L )
Answer:12.5 mike he walked to practice last week
Step-by-step explanation:
2.5 miles everyday
5 practices last week
2.5 miles x 5 practices
I’m pretty sure it’s 18, idk search it on google and it will tell u the answer