Review on 5.1-5.4

Please select the correct solution

• csc² x
• cot² x
• sin² x
• sec² x

Tags

CCSS.HSF.TF.C.8

Please select the correct solution

• csc x
• sec x
• cot x
• tan x

Tags

CCSS.HSF.TF.C.8

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.3

CCSS.HSG.SRT.C.6

Find the exact value of the expression.
cos(20)cos(40) - sin(20)sin(40)

• 1/4
• 1/2
• √(3)/2
• √(3)

Tags

CCSS.HSF.TF.C.9

Use Sum or Difference Identities to find the exact value of each expression.
cos(75°)

• 1/4
• ( √(6) - √(2) ) / 4
• (√(6) + √(2)) / 4
• (-√(6) - √(2)) / 4

Tags

CCSS.HSF.TF.C.9

Write the following expression as the sine, cosine, or tangent of an angle.
cos(175)cos(55)+sin(175)sin(55)

• sin(120)
• cos(120)
• cos(230)
• sin(230)

Tags

CCSS.HSF.TF.C.9

• tan (a + b)

• tan (a - b)

• cos (a + b)

• cos (a - b)

Tags

CCSS.HSF.TF.C.9

• tan (a + b)

• tan (a - b)

• cos (a + b)

• cos (a - b)

Tags

CCSS.HSF.TF.C.9

cos40° cos10° + sin40° sin10° =

• sin (50°)

• 1/2

• cos (50°)

• √3/2

Tags

CCSS.HSF.TF.C.9

sin50° cos5° + cos50° sin5° =

• sin (55°)

• √2/2

• cos (55°)

• - √2/2

Tags

CCSS.HSF.TF.C.9

sin65° cos20° - cos65° sin20° =

• sin (85°)

• √2/2

• cos (85°)

• - √2/2

Tags

CCSS.HSF.TF.C.9