Inverse Trigonometric Precalculus

Solve for θ on the interval from [0, 2π).

θ = arccot (0)

• θ = π / 2, 3π / 2

• θ = undefined

• θ = 5π / 6, 7π / 6

• θ = 0, π

Which equation would you use to solve for the unknown angle?

• x = sin^–1(4/5)

• x = cos^–1(4/5)

• x = cos^–1(5/4)

• x = tan^–1(4/5)

Which equation would you use to solve for the unknown angle?

• x = tan^–1(24/7)

• x = tan^–1(7/24)

• x = tan^–1(25/7)

• x = tan^–1(7/25)

Use inverse trig ratios (SOH CAH TOA) to solve for the missing angle

• 32°

• 44°

• 61°

• 50°

Match the following definitions with the correct word

• Arctangent

• The --------- of a number between 0 and 1 is the

  acute angle whose sine is that number.

• Arcsine

• The ----------- of a positive number is the acute

  angle whose tangent is that number.

• Arccosine

• The ---------- of a number between 0 and 1 is the

  acute angle whose cosine is that number.

Match the following to the trig function used to solve for angle B.

• Inverse Sine

• 
• not a right triangle

• 
• Inverse Cosine

• 
• Inverse Tangent

• 

Find the measure of the missing angle.

• 49^o

• 50^o

• 41^o

• 33^o

Which equation is true?

• sin (x) = 11/27

• sin (x) = 27/11

• cos (x) = 11/27

• tan (x) = 11/27

Find the measure of the indicated angle (?) round to the nearest tenth.

• 9.4

• 55.2

• 20.15

• 19.4

Use inverse trig ratios (SOH CAH TOA) to solve for the missing angle

• 33°

• 49°

• 39°

• 41°