Trigonometria Flashcards

1
Q

o lado do triangulo oposto ao angulo de 90º chama-se…

A

hipotenusa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

os lados do triangulo adjacentes ao angulo de 90º chamam-se…

A

catetos

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

pelo teorema de Pitágoras…

A

hipotenusa² = cateto² + cateto²

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

o seno de um angulo equivale…

A

ao cateto oposto ao angulo sobre a hipotenusa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

o cosseno de um angulo equivale…

A

ao cateto adjacente ao angulo sobre a hipotenusa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

a fórmula fundamental da trigonometria é…

A

sen²x + cos²x = 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

tan² + 1 =

A

= 1/cos²

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

(nem sempre aplicável) tan =

A

sen/cos

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

em angulos agudos:
o seno e o cosseno nunca são menores do que … e nunca são maiores do que …
a tangente é sempre maior do que …

A

0
1
0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

sen 30º

A

1/2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

sen 45º

A

√2/2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

sen 60º

A

√3/2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

cos 30º

A

√3/2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

cos 45º

A

√2/2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

cos 60º

A

1/2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

tan 30º

A

√3/3

17
Q

tan 45º

A

1

18
Q

tan 60º

A

√3

19
Q

equivalencia de seno e cosseno: sen α =

A

= cos (90º - α)

20
Q

equivalencia de seno e cosseno: cos α =

A

= sen (90º - α)