Formulas Flashcards by Charlie Dvc

Q

Distance Line Formula

A

d= (x 2−x1) 2+(y 2−y 1 )2

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Double Angle (sine)

A

sin(2θ)=2sinθcosθ

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Double Angle (cosine)

A

cos(2θ)=cos²θ-sin²θ
cos(2θ)=2cos²θ−1
cos(2𝜃)=1−2sin²𝜃

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Double Angle (tan)

A

tan(2θ)=

2tanθ
_________
1−tan²θ

How well did you know this?

1

Not at all

2

3

4

5

Perfectly