
Trigonometric Identities and Formulas

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

Mia Campbell
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of squaring the sum of sine and cosine?
Sine squared plus cosine squared
Sine two theta plus one
Two sine theta cosine theta
One minus sine squared
Tags
CCSS.HSF.TF.C.9
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can sine 2 theta be expressed using tangent?
Tangent squared theta minus one
One minus tangent squared theta
Sine squared theta plus cosine squared theta
Two tangent theta divided by one plus tangent squared theta
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the identity for one minus tangent squared?
Cosine 2x divided by cosine squared x
Cosine squared x divided by sine squared x
Sine 2x divided by sine squared x
Tangent 2x divided by tangent squared x
Tags
CCSS.HSF.TF.C.9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which formula is used to reduce cosine 4x to a simpler form?
Double angle formula
Sum and difference formula
Pythagorean identity
Half angle formula
Tags
CCSS.HSF.TF.C.9
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many times do you need to apply the double angle formula to reduce 8x to 1x?
Four times
Three times
Twice
Once
Tags
CCSS.HSF.TF.C.9
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final expression for cosine 4x after applying the double angle formula twice?
2 cosine squared x minus 1
8 cosine to the fourth power of x minus 8 cosine squared plus 1
1 minus 2 sine squared x
4 cosine cubed x minus 3 cosine x
Tags
CCSS.HSF.TF.C.9
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for cosine of 3x?
Cosine squared x minus sine squared x
2 cosine squared x minus 1
4 cosine cubed x minus 3 cosine x
1 minus 2 sine squared x
Tags
CCSS.HSF.TF.C.9
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