Pure Year 1 Unit 9 Flashcards

1
Q

Cosine rule for a missing side

A

a^2 = b^2 + c^2 - 2bc cos(A)

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

Cosine rule for a missing angle

A

cos(A) = (b^2 + c^2 - a^2) / 2bc

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

Sine rule for finding missing side

A

a / sin(A) = b / sin(B) = c / sin(C)

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

Sine rule for finding missing angle

A

sin(A) / a = sin(B) / b = sin(C) / c

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

Trigonometric formula for area of a triangle

A

area = 1/2 ab sin(C)

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