UNIT CIRCLE + CONVERSION Flashcards

1
Q

In the 1st quadrant, the following angles are positive:

A
  1. sin
  2. cos
  3. tan
  4. csc
  5. sec
  6. cot
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2
Q

In the 2nd quadrant, the following angles are positive:

A
  1. sin
  2. csc
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3
Q

In the 3rd quadrant, the following angles are positive:

A
  1. tan
  2. cot
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4
Q

In the 4th quadrant, the following angles are positive:

A
  1. cos
  2. sec
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5
Q

Degrees -> Radians

A

(# of degrees / 360 degrees) x 2(pi)

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6
Q

Radians -> Degrees

A

(# of radians / 2(pi)) x 360 degrees

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7
Q

arc length

A

theta x radius

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8
Q

radius

A

arc length / theta

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9
Q

special angles

A

30, 45, 60

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10
Q

quadrantal angles

A

0, 90, 180, 270, 360

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11
Q

smallest positive value

A

alpha

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12
Q

angle whose terminal side lies on either the x-axis or y-axis

A

quadrantal

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13
Q

Coterminal angles who share the same ______ and _____ side

A

initial, terminal

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14
Q

Coterminal angles are found by __________ or __________ (_____ or _____) to an angle.

A

adding, subtracting, 360 deg, 2pi

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