Inverse Trig Functions with Reference Triangles

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)

Tags

CCSS.HSG.SRT.C.8

Which equation could be used to solve for the unknown angle?

• x =sin^–1(25/24)

• x = sin^–1(24/25)

• x = sin^–1(25/7)

• x = sin^–1(7/25)

Tags

CCSS.HSG.SRT.C.8

Which equation is true?

• sin (x) = 14/29

• cos (x) = 14/29

• tan (x) = 14/29

• tan (x) = 29/14

Tags

CCSS.HSG.SRT.C.6

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)

Tags

CCSS.HSG.SRT.C.8

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.

Find A, B, and C.

angle A = ​ ​ (a)  

angle B = ​ (b)  

angle C = (c)  

• 20.49

• 90

• 69.51

• 32.84

• 57.16

• 37.17

• 52.83

• 60

• 30

Tags

CCSS.HSG.SRT.C.8

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

• x =tan^–1(51/85)

• x = tan^–1(85/51)

• x = tan^–1(51/68)

• x = tan^–1(68/51)

Tags

CCSS.HSG.SRT.C.8

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

• x = sin^–1(56/70)

• x = sin^–1(70/56)

• x = sin^–1(70/42)

• x = sin^–1(42/70)

Tags

CCSS.HSG.SRT.C.8

Solve for x.

• x = 90º

• x = 60º

• x = 45º

• x = 30º

Tags

CCSS.HSG.SRT.C.8

Solve for x.

• x = 90º

• x = 60º

• x = 45º

• x = 30º

Tags

CCSS.HSG.SRT.C.8