Solving Trig Equations: Part 1 Challenge

What is the reference angle for pi over 3?

• pi over 2

• pi over 6

• pi over 4

• pi over 3

What is the sine of pi over 3?

• 3/2

• sqrt(2)/2

• sqrt(3)/2

• 1/2

In which quadrant does 4 pi over 3 lie?

• Quadrant III

• Quadrant II

• Quadrant IV

• Quadrant I

Why is the sine of 4 pi over 3 negative?

• Only cosine is positive

• Only sine is positive in this quadrant

• Only tangent is positive

• All are negative

What is the reference angle for pi over 6?

• pi over 3

• pi over 4

• pi over 2

• pi over 6

What is the cosine of pi over 6?

• 3/2

• 1/2

• sqrt(3)/2

• sqrt(2)/2

In which quadrant does 11 pi over 6 lie?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Why is the cosine of 11 pi over 6 positive?

• All are positive

• Only tangent is positive

• Only cosine is positive

• Only sine is positive in this quadrant

What is the tangent of pi over 3?

• 1/3

• sqrt(3)/3

• sqrt(3)

• 1

Why is the tangent of 2 pi over 3 negative?

• Only sine is positive in this quadrant

• Only cosine is positive

• All are negative

• Only tangent is positive