Graphing sine and cosine practice with evaluating trig review

Multiple Choice

What is the period of
y= 4 cos (5x)

• 2π/5

• π

• 5

• 5π

Multiple Choice

What is the equation of the graph?

•  y = 2 cos x

• y = sin x

• y = 2 sin x

• y = sin 2x 

Multiple Choice

What is the period of either graph?

y = sin(x) & y = cos (x)

• Pi

• 2Pi

• Pi/2

• Pi/4

Multiple Choice

• $$period:\ 6\pi$$

• $$period:\ 3\pi$$

• $$period:\ 2\pi$$

• $$period:\ 8\pi$$

Multiple Choice

Which equation?

• y= -cos(2x)

• y= cos(2x)

• y= (1/2)cosx

• y= (-1/2)cosx

Multiple Choice

• A

• B

• C

• D

Multiple Choice

sin 7π/6

• 1/2
• -1/2
• √3/2
• -√3/2

Multiple Choice

cos 150^o

• -1/2

• 1/2

• √3/2

• -√3/2

Multiple Choice

tan 225º

• 1

• -1

• 0

• undefined

Multiple Choice

What is the tan(7π/6)

• _√3

• -√3/3

• √3/3

• 1

Multiple Choice

cos $$\frac{5\pi}{6}$$

• -1/2
• 1/2
• $$\frac{\sqrt[]{3}}{2}$$

• $$-\frac{\sqrt[]{3}}{2}$$

Multiple Choice

tan $$\frac{7\pi}{4}$$

• -1
• 1
• $$-\frac{\sqrt[]{2}}{2}$$

• undefined

Multiple Choice

cos $$\frac{4\pi}{3}$$

• $$-\frac{\sqrt[]{3}}{2}$$

• $$\frac{\sqrt[]{3}}{2}$$

• 1/2
• -1/2

Multiple Choice

$$\sec\left(\frac{11\pi}{6}\right)$$

• $$-\frac{\sqrt{3}}{3}$$  

• $$\frac{1}{2}$$  

• $$\frac{2\sqrt{3}}{3}$$  

• -√3