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Final Review PreCalc B - Ch 7 Topics

Authored by Adriann Kell

Mathematics

10th Grade

CCSS covered

Used 7+ times

Final Review PreCalc B - Ch 7 Topics
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16 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 2 pts

Use a double-angle identity to find the exact value of each expression
cos θ = 4/5 and 270° < θ < 360°
Find sin 2θ

-1/5
24/25
-24/25
-25/24

Tags

CCSS.HSF.TF.C.9

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Use a double-angle identity to find the exact value of the following expression.
cos θ= 15/17 and 3π/2 < θ < 2π
Find cos 2θ

-240/161
240/161
-240/289
161/289

Tags

CCSS.HSF.TF.C.9

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Use Sum or Difference Identities to find the exact value of each expression.
cos(75°)

1/4
(√6 - √2) / 4
(√6 + √2) / 4
(-√6 - √2) / 4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Please choose the correct sum and difference formula:
cos (α+β) =

sin α cos β + cos α sin β
sin α cos β - cos α sin β
cos α cos β - sin α sin β
cos α cos β + sin α sin β

Tags

CCSS.HSF.TF.C.9

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

sin 105º

√3/2
-1/4(√2 + √6)
1/4 (√2 + √6)
2-√3

Tags

CCSS.HSF.TF.C.9

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of these is equivalent to 2cos2x − 3cosx = 0 ?

-cos2x = 0

cosx(2cosx + 3) = 0

cosx(2cosx − 3) = 0

cos x = ⅔

Tags

CCSS.HSF.TF.B.7

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Factor 0 = sin2x − sinx

0 = sinx(sinx)

0 = sinx(1 − sinx)

0 = cosx(sinx − 1)

0 = sinx(sinx − 1)

Tags

CCSS.HSF.TF.B.7

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