trig functions Flashcards

1
Q

sin

A

y/r

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2
Q

cos

A

x/r

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3
Q

tan

A

y/x

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4
Q

csc

A

r/y

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5
Q

sec

A

r/x

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6
Q

cot

A

x/y

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7
Q

cos (A-B) =

A

cosAcosB + sinAsinB

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8
Q

cos(A-B) =

A

cosAcosB - sinAsinB

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