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Pre Calc 2 > Chapter 5 > Flashcards

Chapter 5 Flashcards

1
Q

sinθ

A

Opposite/Hypotenuse

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2
Q

Cosθ

A

Adjacent/hypotenuse

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3
Q

Tanθ

A

Opposite/Adjacent

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4
Q

Cscθ

A

Hypotenuse/opposite

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5
Q

Secθ

A

Hypotenuse/Adjacent

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6
Q

Cotθ

A

Adjacent/Opposite

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7
Q

What is the inverse of cscθ?

A

1/sinθ

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8
Q

What is the inverse of tanθ?

A

1/cotθ

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9
Q

What is the inverse of secθ?

A

1/cosθ

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10
Q

What is the formula for tanθ?

A

Sinθ/Cosθ

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11
Q

What is the formula for Cotθ?

A

Cosθ/Sinθ

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12
Q

What is the formula for Secθ?

A

1/Cosθ

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13
Q

What is the formula for Cscθ?

A

1/Sinθ

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14
Q

Fundamental formula

Sin²θ + Cos²θ=

A

1

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15
Q

Fundamental formula

1 + tan²θ=

A

Sec²

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16
Q

Fundamental formula

1 + cot²θ =

A

Csc²θ

17
Q

Fundamental formula

Tanθ • Cotθ

A

1

18
Q

What is the negative formula for sin(-t)?

A

-sin(t)

19
Q

What is the negative formula for cos(-t)?

A

cos(t)

*stays positive

20
Q

What is the negative formula for tan(-t)?

A

-tan(t)

21
Q

What is the negative formula for csc(-t)?

A

-csc(t)

22
Q

What is the negative formula for cot(-t)?

A

-cot(t)

23
Q

What is the negative formula for sec(-t)?

A

sec(t)

*stays positive

24
Q

The angle between terminal side and the x-axis is called the what?

A

Reference angle

25
Q

In the first quadrant, what is the reference angle’s formula?

A

θR= θ

26
Q

In the second quadrant (when 90 < θ < 180), what is the reference angle’s formula?

A

θR= 180-θ or pi-θ

27
Q

In the third quadrant (when 180 < θ < 270), what is the reference angle’s formula?

A

θR= θ-180 or θ- pi

28
Q

In the fourth quadrant (when 270 < θ < 360), what is the reference angle’s formula?

A

θR= 360-θ

Pre Calc 2 (1 decks)

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