Trigonometry Functions and Review Flashcards

0
Q

1/sec x

A

cos x

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1
Q

1/csc x

A

sin x

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2
Q

1/cot x

A

tan x

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3
Q

1/sin x

A

csc x

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4
Q

1/cos x

A

sec x

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5
Q

1/tan x

A

cot x

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6
Q

sin² x + cos² x

A

1

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7
Q

1 + cot² x

A

csc² x

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8
Q

tan² x + 1

A

sec² x

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9
Q

sin² x

A

1 - cos² x

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10
Q

tan² x

A

sec² x - 1

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11
Q

cot² x

A

csc² x - 1

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12
Q

cos² x

A

1 - sin² x

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13
Q

sec² x - tan² x

A

1

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14
Q

csc² x - cot² x

A

1

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15
Q

sin u cos v ± sin v cos u

A

sin (u ± v)

16
Q

cos u cos v ± -(sin u sin v)

A

cos (u ± v)

17
Q

tan u ± tan v / 1 ± -(tan u tan v)

A

tan (u ± v)

18
Q

2 sin x cos x

A

sin (x + x)

19
Q

1 - 2sin² x

A

cos 2x

20
Q

2cos² x - 1

A

cos 2x

21
Q

tan 2x

A

2 tan x / 1 - tan² x

22
Q

cos² x - sin² x

A

cos 2x