Trigonometry Flashcards

1
Q

tanx =

A

cosx

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

secx =

A

cosx

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

cosecx =

A

sinx

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

cotx =

A

1 cosx
—– OR ——
tanx sinx

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

cos^2x + sin^2x =

A

1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

1+tan^2x=

A

sec^2x

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

1+cot^2x=

A

cosec^2x

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

sin(A+B)=

A

sinAcosB+cosAsinB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

sin(A-B)=

A

sinAcosB-cosAsinB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

cos(A+B)=

A

cosAcosB-sinAsinB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

cos(A-B)=

A

cosAcosB+sinAsinB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

tan(A+B)=

A

1-tanAtanB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

tan(A-B)=

A

1+tanAtanB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

sin2x=

A

2sinxcosx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

cos2x=

A

cos^2x-sin^2x

OR

2cos^2x-1

OR

1-2sin^2x

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

tan2x=

A

1-tan^2x