Chapter 5.1, 5.2, 6.1, 6.2 Test Flashcards by Raleigh Singer

Q

SinT

A

y

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Q

CosT

A

x

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Q

TanT

A

y/x

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Q

CscT

A

1/y

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Q

SecT

A

1/x

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Q

cotT

A

1/(y/x)

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Q

0 degrees

A

(0), (1,0)

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Q

30 degrees

A

(pi/6), (root3/2, 1/2)

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Q

45 degrees

A

(pi/4), (root2/2, root2/2)

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Q

60 degrees

A

(pi/3), (1/2, root3/2)

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Q

90 degrees

A

(pi/2), (0,1)

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Q

sin(-T)

A

-sinT (odd)

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Q

cos(-T)

A

cosT (even)

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Q

tan(-T)

A

-tanT (odd)

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Q

csc(-T)

A

-cscT (odd)

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Q

cot(-T)

A

-cotT (odd)

Q

sec(-T)

A

secT (even)

Q

pi Radians

A

180 degrees

Q

2pi Radians

A

360 degrees

Q

pi/2 Radians

A

90 degrees

Q

To convert degrees to radians:

A

multiply by 180/pi

Q

To convert radians to degrees:

A

multiply by pi/180

Q

Length of a circular Arc

A

(angle/2pi)x(circumference of circle) OR (angle)x(radius)

Q

Area of a Sector

A

1/2(radius^2)(angle)

Q

Angular Speed

A

angle/time

Q

Linear Speed

A

arc length/time

Q

Sin(angle)

A

opposite/hypotenuse

Q

Cos(angle)

A

adjacent/hypotenuse

Q

Tan(angle)

A

opposite/adjacent

Q

Cot(angle)

A

adjacent/opposite

Q

Csc(angle)

A

hypotenuse/opposite

Q

Sec(angle)

A

hypotenuse/adjacent

Q

Angles: (45, 45, 90) Sides:

A

(1, 1, root2)

Q

Angles: (30, 60, 90) Sides:

A

(root3, 1, 2)