What is the primary goal when using trigonometric identities in this context?
Learn how to eliminate the parameter given sine and cosine of t

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Mathematics
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To determine the sine of T
To find the value of cosine
To solve for T directly
To eliminate the parameter T
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What expression is used to replace cosine of T in the equation?
X / 7 and Y / 7
X^2 + Y^2
7X + 7Y
T / 7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equation derived after replacing cosine of T?
X^2 + Y^2 = 49
X^2/7 + Y^2/7 = 1
X^2/49 + Y^2/49 = 1
X^2 + Y^2 = 1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the equation X^2/49 + Y^2/49 = 1 transformed into the standard circle equation?
By adding 49 to both sides
By dividing both sides by 49
By multiplying both sides by 49
By subtracting 49 from both sides
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the radius of the circle in the final equation?
49
1
7
14
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