Precal Exam Review

Answer explanation

Use Pythagorean Identities to complete the statement.

Tags

CCSS.HSF.TF.C.8

Answer explanation

Use Pythagorean Identities to complete the equation

Tags

CCSS.HSF.TF.A.4

Select all that are Pythagorean Identities.

• sin²(u) + cos²(u) = 1

• sin²(u) - cos²(u) = 1

• tan²(u) + 1 = sec²(u)

• cot²(u) + csc²(u) = 1

• cot²(u) + 1 = csc²(u)

Simplify the trig expression.

• tan²x
• -tan²x
• cot²x
• cos²x*sin²x

When converting between rectangular and polar coordinates,
y = ?

•  $r\cosθ$  

•  $r\sinθ$  
  

•  $x²+y²$  

•  $\frac{y}{x},\ x≠0$  

Tags

CCSS.HSN.CN.B.4

Match the point in polar coordinates with either A, B, C, or D on the graph.
(2, 5π/6)

• A
• B
• C
• D

Tags

CCSS.HSN.CN.B.4

What is the equation?

• $\theta=\frac{π}{4}$

• $\theta=-\frac{5π}{4}$
  

• $\theta=-\frac{3π}{4}$
  

• $\theta=\frac{5π}{4}$
  

Which letter represents the point

 $(-4,\frac{4π}{3})$  ?

• F

• E

• B

• A

Tags

CCSS.HSN.CN.B.4

If the plane intersects both cones as shown in the figure, the conic section formed is a/an ______________.

• Parabola

• Ellipse

• Circle

• Hyperbola

Tags

CCSS.7.G.A.3

• Center: (0, -2)

  a = 100

  b = 25

• Center: (0, 2)

  a = 10

  b = 5

• Center: (0, -2)

  a=10

  b=5

• Center: (0, 2)

  a=100

  b=25

Tags

CCSS.HSG.GPE.A.1