Unit 7 Flashcards by Sarah E | Brainscape

Q

sinA/cosA

A

tanA

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Q

cosA/sinA

A

cotA

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Q

sin(-A)

A

-sin(A)

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Q

cos(-A)

A

cos(A)

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Q

tan(-A)

A

-tan(A)

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Q

sin²(A) + cos²(A)

A

1

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Q

1-sin²(A)

A

cos²(A)

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Q

1-cos²(A)

A

sin²(A)

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Q

tan²(A)+1

A

sec²(A)

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Q

sec²(A)-tan²(A)

A

1

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Q

1+cot²(A)

A

csc²(A)

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Q

csc²(A)-cot²(A)

A

1

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Q

csc²(A)-1

A

cot²(A)

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Q

sec²(A)-1

A

tan²(A)

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Q

cos(A+B)

A

cosAcosB-sinAsinB

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Q

cos(A-B)

A

cosAcosB+sinAsinB

Q

sin(A+B)

A

sinAcosB+cosAsinB

Q

sin(A-B)

A

sinAcosB-cosAsinB

Q

tan(A+B)

A

tanA+tanB
____________
1-tanAtanB

Q

tan(A-B)

A

tanA-tanB
____________
1+tanAtanB

Q

sin(2x)

A

2cos(x)sin(x)

Q

tan(2x)

A

2tan(x)
_________
1-tan²(x)

Q

cos(2x) (with negative sin)

A

cos²x-sin²x

Q

cos(2x) (without sin)

A

2cox²x-1

Q

cos(2x) (with sin²x)

A

1-2sin²x