Trigonometric values ​​of special angles Flashcards

1
Q

1+tan²α

A

1/cos²α

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2
Q

1+cot²α

A

1/sin²α

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3
Q

Sin(K2π+α)

A

Sinα

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4
Q

Cos(K2π+α)

A

Cosα

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5
Q

Sin(π/2-α)

A

Cosα

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6
Q

Cos(π/2-α)

A

Sinα

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7
Q

tan(π/2-α)

A

Cotα

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8
Q

Cot(π/2-α)

A

tanα

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9
Q

Sin(-α)

A

-Sinα

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10
Q

Cos(-α)

A

Cosα

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11
Q

tan(-α)

A

-tanα

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12
Q

Cot(-α)

A

-Cotα

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13
Q

Sin(π+α)

A

-Sinα

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14
Q

Cos(π+α)

A

-Cosα

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15
Q

tan(π+α)

A

tanα

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16
Q

Cot(π+α)

A

Cotα

17
Q

Sin(π-α)

A

Sinα

18
Q

Cos(π-α)

A

-Cosα

19
Q

tan(π-α)

A

-tanα

20
Q

Cot(π-α)

A

-Cotα