
Trigonometric Identities and Functions

Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Easy
Standards-aligned

Liam Anderson
Used 2+ times
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a reciprocal identity?
Cosine theta = adjacent / hypotenuse
Sine theta = opposite / hypotenuse
Secant theta = 1 / cosine theta
Tangent theta = sine theta / cosine theta
Tags
CCSS.HSF.TF.C.8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Pythagorean identity involving sine and cosine?
Tangent squared theta + 1 = secant squared theta
Sine squared theta + cosine squared theta = 1
Sine theta = cosine theta
1 + cotangent squared theta = cosecant squared theta
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you verify the identity sine squared theta + cosine squared theta = 1 using a right triangle?
By using the definition of secant
By applying the Pythagorean theorem
By applying the law of sines
By using the definition of tangent
Tags
CCSS.HSF.TF.C.8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If cosine theta = 3/4 and theta is in the 4th quadrant, what is sine theta?
Square root of 7 over 4
3/4
Negative square root of 7 over 4
Negative 3/4
Tags
CCSS.HSF.TF.C.8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given tangent theta = -5/3 in the 2nd quadrant, what is secant theta?
5/3
Square root of 34 over 3
Negative 5/3
Negative square root of 34 over 3
Tags
CCSS.HSF.TF.C.8
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find sine theta if you know cosecant theta?
Multiply by the reciprocal of tangent
Take the reciprocal of cosecant theta
Subtract 1 from cosecant theta
Add 1 to cosecant theta
Tags
CCSS.HSF.TF.C.8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which identity is used to find secant theta from tangent theta?
Sine theta = 1 / cosecant theta
1 + cotangent squared theta = cosecant squared theta
Tangent squared theta + 1 = secant squared theta
Sine squared theta + cosine squared theta = 1
Tags
CCSS.HSF.TF.A.2
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