Trigonometry Flashcards by Alice Chui

Q

tan²θ + 1

A

sec²θ

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Q

1 = ?

3 different answers

A

sec²θ - tan²θ cos²θ + sin²θ cosec²θ - cot²θ

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Q

1/cosθ = ?

A

secθ

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Q

cos²θ

A

1 - sin²θ

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Q

secθ = ?

A

1/cosθ

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Q

tanθ

A

sinθ/cosθ

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Q

1/tanθ

A

cotθ

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Q

sin²θ

A

1 - cos²θ

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Q

cos²θ + sin²θ = ?

A

1

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Q

cotθ = ?

A

1/tanθ

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Q

sinθ/cosθ

A

tanθ

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Q

cosecθ = ?

A

1/sinθ

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Q

cotθ

A

cosθ/sinθ

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Q

tan²θ

A

sec²θ - 1

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Q

1/sinθ = ?

A

cosecθ

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Q

cosec^2θ

A

cot^2θ + 1

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Q

cos(A+B)

A

cosAcosB - sinAsinB

Q

sec^2θ

A

tan^2θ + 1

Q

cosθ/sinθ

A

cotθ

Q

cot^2θ

A

cosec^2θ - 1

Q

sin(A+B) = ?

A

sinAcosB + sinBcosA

Q

cos(A-B) = ?

A

cosAcosB + sinAsinB

Q

1 + cot^2θ = ?

A

cosec^2θ

Q

sin(A-B) = ?

A

sinAcosB - sinBcosA

Q

tan(A+B) = ?

A

tanA+tanB/1-tanAtanB

Q

sin2A = ?

A

2sinAcosA

Q

cos2A = ?

A

cos^2A-sin^2A

Q

tan(A-B) = ?

A

tanA-tanB/1+tanAtanB

Q

cos2A

A

1-2sin^2A

Q

tan2A = ?

A

2tanA/1-tan^2A

Q

cos2A = ?

A

2cos^2-1

Q

tanA-tanB/1+tanAtanB

A

tan(A-B) = ?

Q

cosAcosB + sinAsinB

A

cos(A-B)

Q

2sinAcosA

A

sin2A

Q

1-2sin^2A

A

cos2A

Q

cos^2A-sin^2A

A

cos2A

Q

sinAcosB - sinBcosA

A

sin(A-B)

Q

tanA+tanB/1-tanAtanB

A

tan(A+B)

Q

2cos^2-1

A

cos2A

Q

2tanA/1-tan^2A

A

tan2A