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Solving Trigonometric Identity Equations

Authored by Anthony Clark

Mathematics

11th Grade

CCSS covered

Solving Trigonometric Identity Equations
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14 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve: 4sin2x = 3 State all solutions in the interval [0, 2π)

π/6, 11π/6

π/3, 2π/3

π/6, 5π/6, 7π/6, 11π/6

π/3, 2π/3, 4π/3, 5π/3

Tags

CCSS.HSF.TF.B.7

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A
B
C
D

Tags

CCSS.HSF.TF.B.7

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A
B
C
D

Tags

CCSS.HSF.TF.B.7

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Choose a good way to start solving this equation


tanx sin2x = 2 tanx

divide tanx from both sides

factor out tanx

subtract 2 tanx from the left and then factor tanx out

cancel sin2x out

I have no idea

Tags

CCSS.HSF.TF.B.7

5.

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

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve sinθ = ½ on θ∈[0, 2π)

θ = π / 6,  7π / 6

θ = π / 6,  5π / 6

θ = 5π / 6,  7π / 6

θ = 7π / 6,  11π / 6

Tags

CCSS.HSF.TF.B.7

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Solve for x


don't forget cot = cos/sin

π

π/3

π/2

Tags

CCSS.HSF.TF.B.7

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