Trigonometry Flashcards by Varshi Sasi | Brainscape

Q

sinA

A

1/cscA

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Q

cosA

A

1/secA

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Q

tanA

A

1/cotA
(sinA)/(cosA)

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Q

cscA

A

1/sinA

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Q

cotA

A

1/tanA
(cosA)/(sinA)

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Q

secA

A

1/cosA

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Q

sin2A

A

2sinAcosA

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Q

cos2A

A

cos^2A - sin^2A
2cos^2A - 1
1 - 2sin^2A

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Q

tan2A

A

(2tanA)/(1-tan^2A)

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Q

sin^2A + cos^2A

A

1

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Q

csc^2A

A

cot^2A + 1

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Q

sec^2A

A

tan^2A +1

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Q

sin(A+B)

A

sinAcosB + cosAsinB

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Q

sin(A-B)

A

sinAcosB - cosAsinB

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Q

cos(A+B)

A

cosAcosB - sinAsinB

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Q

cos(A-B)

A

cosAcosB + sinAsinB

Q

tan(A+B)

A

(tanA + tanB)/(1- tanAtanB)

Q

tan(A-B)

A

(tanA - tanB)/(1+ tanAtanB)