trignometry

(sin30° + cos30°) – (sin 60° + cos60°) =

• -1

• 0

• 1

• 2

Tags

CCSS.HSF.TF.C.9

Value of tan30°/cot60° is:

• $\frac{1}{\sqrt{2}}$

• $\frac{1}{\sqrt{3}}$

• 1

• 0

Tags

CCSS.HSF.TF.C.8

If sin A = 1/2 and cos B = 1/2, then A + B = ?

• $0\degree$

• $30\degree$

• $60\degree$

• $90\degree$

Tags

CCSS.HSG.SRT.C.7

(sin30° + cos30°) – (sin 60° + cos60°)

• -1

• 0

• 1

• 2

Tags

CCSS.HSF.TF.C.9

Value of tan30°/cot60° is:

• 1/√2

• 1/√3

• √3

• 1

Tags

CCSS.HSF.TF.C.8

sec²θ – 1 = ?

• tan²θ

• tan²θ + 1

• cot²θ – 1

• cos²θ

If cos A = 4/5, then tan A = ?

• 3/5

• 3/4

• 4/3

• 4/5

Tags

CCSS.HSG.SRT.C.6

The value of sin² 30° – cos² 30° is

• $\frac{-1}{2}$

• $\frac{\sqrt{3}}{2}$

• $\frac{3}{2}$

• $\frac{-2}{3}$

Tags

CCSS.HSF.TF.C.8

tan 45° + cot 45° =______

• 1

• 2

• 3

• 0

Tags

CCSS.HSF.TF.C.8

In triangle ABC, BC =3 cm, AB =5 cm ,then tan A is 

• 3/5
• 4/5
• 3/4
• 4/3

Tags

CCSS.HSG.SRT.C.6