Pre-Calc 4.4

If θ is an angle in standard position and r = √(x²+ y²), sec θ = __

• x/r

• y/r

• r/x

• y/x

If θ is an angle in standard position and r = √(x²+ y²), cos θ = __

• x/r

• y/r

• r/x

• y/x

If θ is an angle in standard position and r = √(x²+ y²), tan θ = __

• x/r

• y/r

• r/x

• y/x

If θ is an angle in Quadrant I, which trig ratios will be positive

• sin θ

• cos θ

• tan θ

• All the above (sin θ, cos θ, tan θ)

If θ is an angle in Quadrant IV, which trig ratios will be positive

• sin θ

• cos θ

• tan θ

• cos θ and tan θ

If θ is an angle in Quadrant III, which trig ratios will be positive

• sin θ

• cos θ

• tan θ

• sin θ, cos θ, tan θ

Let (-4, 3) be a point on the terminal side of θ.  Which of the following is FALSE?

• cos θ = -4/5

• tan θ = -3/4

• sin θ = 3/5

• cos θ = 4/5

Let (-4, 3) be a point on the terminal side of θ.  What is tan θ?

• -4/5

• -3/4

• 3/5

• 4/5

Let (-4, 3) be a point on the terminal side of θ.  What is sin θ?

• -4/5

• -3/4

• 3/5

• 4/5

If tanθ = -¾ and cscθ > 0, then secθ =

• -4/5

• 5/4

• -5/4

• 4/5