
Understanding Sine Functions
Authored by Costas Rabalakos
Mathematics
8th Grade

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ποιος είναι ο ορισμός της συνάρτησης ημίτονου;
Η συνάρτηση ημίτονου είναι το μήκος της υποτείνουσας διαιρεμένο με το μήκος της αντίθετης πλευράς σε ένα ορθογώνιο τρίγωνο.
Η συνάρτηση ημίτονου είναι η αναλογία του μήκους της αντίθετης πλευράς προς το μήκος της υποτείνουσας σε ένα ορθογώνιο τρίγωνο.
Η συνάρτηση ημίτονου είναι το άθροισμα των μηκών όλων των πλευρών σε ένα ορθογώνιο τρίγωνο.
Η συνάρτηση ημίτονου είναι η αναλογία της γειτονικής πλευράς προς την υποτείνουσα σε ένα ορθογώνιο τρίγωνο.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Πώς υπολογίζετε το ημίτονο μιας γωνίας 30 μοιρών;
0.5
1.0
0.25
0.75
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the range of the sine function?
[-2, 2]
[1, 3]
[-1, 1]
[0, 2]
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between sine and the unit circle?
The sine of an angle is the x-coordinate of the corresponding point on the unit circle.
The sine of an angle is the y-coordinate of the corresponding point on the unit circle.
The sine of an angle is the distance from the center of the circle to the point on the circumference.
The sine of an angle is the angle itself measured in radians.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the sine function behave in different quadrants?
Sine is negative in all quadrants.
Sine is positive in Quadrants I and III, and negative in Quadrants II and IV.
Sine is positive in Quadrants I and II, and negative in Quadrants III and IV.
Sine is positive in Quadrants II and IV, and negative in Quadrants I and III.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sine of 90 degrees?
0
-1
1.5
1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you use the sine function to find the height of a triangle?
height = side / tan(angle)
height = side * sin(angle)
height = side * cos(angle)
height = side + angle
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