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Section 9.2: Sum and Difference Identities Video Quiz

Authored by Julie Sullivan

Mathematics

University

CCSS covered

Used 1+ times

Section 9.2: Sum and Difference Identities Video Quiz
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the basis for the co-function identities?

Complementary angles

Vertical angles

Adjacent angles

Supplementary angles

Tags

CCSS.HSG.SRT.C.7

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is sine of an angle equal to cosine of its complement?

Because they are vertical angles

Because they are adjacent angles

Because they are supplementary

Because they are complementary

Tags

CCSS.HSG.SRT.C.7

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the property of sine when it is considered an odd function?

sine(-x) = -cosine(x)

sine(-x) = cosine(x)

sine(-x) = sine(x)

sine(-x) = -sine(x)

Tags

CCSS.HSF.TF.A.4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you verify that cosine is an even function using the difference formula?

cos(0 - y) = sin(y)

cos(0 - y) = cos(y)

cos(0 - y) = -sin(y)

cos(0 - y) = -cos(y)

Tags

CCSS.HSF.TF.C.9

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the exact value of cosine(π/12) using the difference formula?

(√3 - √2) / 4

(√3 + √2) / 4

(√6 - √2) / 4

(√6 + √2) / 4

Tags

CCSS.HSF.TF.C.9

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you express sine(11π/12) using the sum formula?

sine(π/3 - π/4)

sine(π/3 + π/4)

sine(2π/3 - π/4)

sine(2π/3 + π/4)

Tags

CCSS.HSF.TF.C.9

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the co-function identity for sec(π/2 - θ)?

cos(θ)

tan(θ)

cot(θ)

cosec(θ)

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