Trigonometry Flashcards Preview

Maths iGCSE > Trigonometry > Flashcards

Flashcards in Trigonometry Deck (15)
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1
Q

Sin 30

A

1/2

2
Q

Cos 30

A

(square root 3)/2

3
Q

Tan 30

A

(square root 3)/3

4
Q

Sin 60

A

= cos 30

(square root 3)/2

5
Q

Cos 60

A

= sin 30

1/2

6
Q

Tan 60

A

square root 3

7
Q

Sin 0

A

0

8
Q

Cos 0

A

1

9
Q

Tan 0

A

0

10
Q

Sin 90

A

1

11
Q

Cos 90

A

0

12
Q

Tan 90

A

Infinite

13
Q

Describe sin graph

A
Wave
Starts at 0 at 0 degrees
Max value is 1 (at 90 degrees)
Min value is -1 (at 180 degrees)
Repeats at 360 degrees (back to 0)
14
Q

Describe cos graph

A
Wave
Starts at 1 at 0 degrees
Max value is 1 (at 0 degrees)
Min value is -1 (at 180 degrees)
0 at 90 degrees
Repeats at 360 degrees (back to 1)
15
Q

Describe tan graph

A

0 at 0 degrees
Asymptote (goes off to +ve infinity at 90 degrees)
Positive between 0 and 90 degrees
Negative between 90 degrees and 180 degrees
Repeats at 180 degrees (back to 0)