Trigonometry (2) Flashcards
Find area of any triangle?
Area = (1/2) ab sinC
Area = (1/2) ab sinC
Find area of any triangle?
When to use sine rule?
If I know two angles and a side
If I know two angles and a side
When to use sine rule?
When to use cosine rule?
If I know three sides
Two sides with an angle between them
If I know three sides
Two sides with an angle between them
When to use cosine rule?
What is tan x?
(sin x/cos x)
(sin x/cos x)
What is tan x?
What is sin^2 x?
1 - cos^2 x
1 - cos^2 x
What is sin^2 x?
What is cos^2 x?
1 - sin^2 x
1 - sin^2 x
What is cos^2 x?
What is sin^2 x + cos^2 x?
1
1
What is sin^2 x + cos^2 x?
What is y = n sin x?
A vertical stretch/squash
A vertical stretch/squash
What is y = n sin x?
What is y = sin nx?
A horizontal squash/stretch
A horizontal squash/stretch
What is y = sin nx?
What is y = sin (x + c)
Translating along the x-axis
Translating along the x-axis
What is y = sin (x + c)
What is pheta * (pheta/2)
pheta^2 / 2
pheta^2 / 2
What is pheta * (pheta/2)
What is (1/2)pheta^2?
pheta^2 / 2
pheta^2 / 2
What is (1/2)pheta^2?
