Trig equations Flashcards by Verity Russell

Q

sec(x) =

A

1 / cos(x)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

cosec(x) =

A

1 / sin(x)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

cot(x) =

A

1 / tan(x)
OR
cos(x) / sin(x)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

sec² (x) =

A

1 + tan² (x)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

cosec² (x) =

A

1 + cot² (x)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

sin2A =

A

2sinAcosA

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

cos2A =

A

cos² A - sin² A
2cos²A - 1
1 - 2sin²A

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

tan2A =

A

2tanA / 1-tan²A

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

tan(A+B) =

A

tan(A)+tan(B) / 1 - tan(A)tan(B)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly