Tutorial - Given the Cosine of an Angle Determine the Double Angle for Sine, Cosine and Tangent
Interactive Video
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Mathematics
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11th Grade - University
•
Practice Problem
•
Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main goal of the problem discussed in the video?
To find the values of sine, cosine, and tangent of 2u
To solve a quadratic equation
To determine the area of a triangle
To calculate the derivative of a function
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which quadrant is the angle u located based on the given constraints?
Fourth quadrant
Third quadrant
Second quadrant
First quadrant
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sine of u if cosine of u is given as -2/3?
-2/3
2/3
-sqrt(5)/3
sqrt(5)/3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which formula is used to calculate sine of 2u?
cosine u / sine u
sine u / cosine u
sine^2 u + cosine^2 u
2 sine u cosine u
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final result for sine of 2u?
-4 sqrt(5)/9
4 sqrt(5)/9
-2 sqrt(5)/3
2 sqrt(5)/3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which formula is used to calculate tangent of 2u?
2 tangent u / (1 - tangent^2 u)
tangent^2 u + 1
cosine u / sine u
sine u / cosine u
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final result for tangent of 2u?
sqrt(5)/2
-4 sqrt(5)
4 sqrt(5)
-sqrt(5)/2
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