Trigonometry

Question 1

sin30

Answer 1

1/2

Question 2

cos30

Answer 2

√3/2

Question 3

tan30

Answer 3

1/√3

Question 4

sin60

Answer 4

√3/2

Question 5

cos60

Answer 5

1/2

Question 6

tan60

Answer 6

√3

Question 7

sin45

Answer 7

1/√2

Question 8

cos45

Answer 8

1/√2

Question 9

tan45

Answer 9

1

Question 10

What is the range of a the graph y=sinx?

Answer 10

-1≤y≤1

Question 11

Where does y=sinx hit the x axis?

Answer 11

-180, 0, 180, 360

Question 12

What is the y intercept of y=sinx?

Answer 12

0

Question 13

What is the range of y=cosx?

Answer 13

-1≤y≤1

Question 14

What are the x-intercepts of y=cosx?

Answer 14

-90, 90, 270, 450, 630

Question 15

What is the y-intercept of y=cosx?

Answer 15

1

Question 16

What is the range of y=tanx?

Answer 16

There isn’t one

Question 17

What are the x-intercepts of y=tanx?

Answer 17

-180, 0, 180, 360, 540

Question 18

What is the y-intercept of y=tanx?

Answer 18

0

Question 19

Where are the asymptotes of y=tanx?

Answer 19

90, 270, 450

Question 19

cosθ

Answer 19

tanθ

Question 20

cosθ

Answer 20

= y
–
x

Question 21

sin²θ=

Answer 21

1-cos²θ

Question 22

Sine rule

Answer 22

• Missing angle:
a/sinA = b/sinB = c/sinC
• Missing side:
sinA/a = sinB/b = sinC/c

Question 23

Cosine rule (used when we know three sides of a triangle or two sides and the angle they inclose)

Answer 23

a² = b²+c²-2bc(cosA)

Question 24

In a quadrant, sinθ =

Answer 24

y/r