B02-A graduação de uma circunferência Flashcards

1
Q

fórmula comprimento de um arco

A

L= angulo em radianos . raio

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1
Q

quando os ângulos são complementares, o seno de um é igual ao

A

cos do outro

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2
Q

quando os ângulos são suplementares o sen de um é igual ao

A

sen do outro

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3
Q

fpf trigonometria

A

falta passa falta

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4
Q

relação fundamental da trig

A

cos²a+sen²a=1

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5
Q

cossec

A

1/sen

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6
Q

sec

A

1/cos

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7
Q

tg

A

sen/cos

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8
Q

cotg

A

cos/sen=1/tg

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9
Q

sec²=

A

1+tg²

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10
Q

cossec²=

A

1+cotg²

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11
Q

cos²=

A

1/1+tg²

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12
Q

sen²=

A

tg²/1+tg²

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13
Q

sen (a+b)

A

sen a . cos b+ sen b . cos a

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14
Q

cos(a+b)

A

cos a . cos b - sen a . sen b

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15
Q

tg(a+b)

A

tg a +tg b / 1-tg a . tg b

16
Q

sen 2a

A

2 sena . cos a

17
Q

cos 2 a

A

cos a²-sen a²

18
Q

tg 2 a

A

2tga/1-tga²