Basic Trig Flashcards

1
Q

Cos(pi/6)

A

Sqrt(3)/2

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2
Q

Cos(pi/4)

A

Sqrt(2)/2

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3
Q

Cos(pi/3)

A

1/2

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4
Q

Cos(pi/2)

A

0

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5
Q

Sin(0)

A

0

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6
Q

Sin(pi/6)

A

1/2

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7
Q

Sin(pi/4)

A

Sqrt(2)/2

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8
Q

Sin(pi/3)

A

Sqrt(3)/2

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9
Q

Sin(pi/2)

A

1

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10
Q

Tan(x)=

A

Sin(x)/cos(x)

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11
Q

Cot(x)=

A

1/tan(x) = Cos(x)/sin(x)

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12
Q

Sec(x)=

A

1/cos(x)

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13
Q

Csc(x)=

A

1/sin(x)

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14
Q

Sin^2(x) + cos^2(x) =

A

1

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15
Q

Tan^2(x) + 1=

A

Sec^2(x)

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16
Q

1+cot^2(x)=

A

Csc^2(x)

17
Q

Sin(2x)=

A

2sin(x)cos(x)

18
Q

Cos(2x)=

A

Cos^2(x)-sin^2(x) = 2cos^2(x)-1 = 1-2sin^2(x)

19
Q

Cos^2(x)=

A

(1+cos(2x))/2

20
Q

Sin^2(x)=

A

(1-cos(2x))/2

21
Q

Cos(0)

A

1