Introduction to Trigonometry

In ∆ ABC, right-angled at B, AB = 24 cm, BC = 7 cm. The value of tan C is

• 24/7

• 12/7

• 11/7

• 42/7

Tags

CCSS.HSG.SRT.C.6

1 – cos²A is equal to

• sec²A

• cot²A

• sin²A

• tan²A

Tags

CCSS.HSF.TF.C.8

If sin A = 1/2 , then the value of cot A is

• √3

• 1/√3

• √3/2

• 1

Tags

CCSS.HSF.TF.C.8

The value of tan 60°/cot 30° is equal to

• 0

• 1

• 2

• 3

Tags

CCSS.HSF.TF.C.8

(sin 30°+cos 60°)-(sin 60° + cos 30°) is equal to

• 0

• 1+2√3

• 1+√3

• 1-√3

Tags

CCSS.HSF.TF.C.9

sin (90° – A) and cos A are

• Different

• Same

• Not related

• None of the above

Tags

CCSS.HSG.SRT.C.7

If cos X = ⅔ then tan X is equal to

• 5/2

• √(5/2 )

• √5/2

• 2/√5

Tags

CCSS.HSF.TF.C.8

2 tan 30°/(1 + tan²30°) =

• sin 60°

• cos 60°

• tan 60°

• sin 30°

Tags

CCSS.HSF.TF.C.9

sin 2A = 2 sin A is true when A =

• 30°

• 45°

• 0°

• 60°

Tags

CCSS.HSF.TF.C.9

The value of (sin 45° + cos 45°) is

• 1/√2

• √2

• √3/2

• 1

Tags

CCSS.HSF.TF.A.2