Double-Angle Formula Flashcards by Matthew Sato | Brainscape

Q

sin(2x)

A

2sin(x)cos(x)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

cos(2x)

A

1-2sin(x)^2
cos(x)^2 - sin(x)^2
2cos(x)^2 - 1

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

tan(2x)

A

[2tan(x)]/[1-tan(x)^2]

How well did you know this?

1

Not at all

2

3

4

5

Perfectly