# Trigonometry Functions

## 35 terms · Learn section 5 from the pre cal book alt+0178= ² alt+251= √

### 1/cscx

(Reciprocal)sinx=

### 1/secx

(Reciprocal)cosx=

### 1/cotx

(Reciprocal)tanx=

### 1/sinx

(Reciprocal)cscx=

### 1/cosx

(Reciprocal)secx=

### 1/tanx

(Reciprocal)cotx=

(quotient) tanx=

(quotient) cotx

### 1

(pythagorean) sin²x+cos²x=

### sec²x

(pythagorean) 1+tan²x=

### csc²x

(pythagorean) 1+cot²x=

### cosx

(Confunction Id) sin(π /2-x)=

### cotx

(Confunction Id) tan(π /2-x)=

### cscx

(Confunction Id) sec(π /2-x)=

### sinx

(Confunction Id)cos(π /2-x)=

### tanx

(Confunction Id) cot(π /2-x)=

### secx

(Confunction Id) csc(π /2-x)=

### -sinx

(Even/Odd Id) sin(-x)=

### cosx

(Even/Odd Id) cos(-x)=

### -tanx

(Even/Odd Id) tan(-x)=

### secx

(Even/Odd Id) sec(-x)=

### -cscx

(Even/Odd Id) csc(-x)=

### -cotx

(Even/Odd Id) cot(-x)=

### sinucosv+cosusinv

(Sum and Dif Formula) sin(u+v)=

### sinucosv-cosusinv

(Sum and Dif Formula) sin(u-v)=

### cosucosv-sinusinv

(Sum and Dif Formula) cos(u+v)=

### cosucosv+sinusinv

(Sum and Dif Formula) cos(u-v)=

### 2sinxcosx

(Double Angle)sin2x=

### 1-2sin²x

(Double Angle) cos2x=

### 2tanx/1-tan²x

(Double Angle) tan2x=

### tanu+tanv/1-tanutanv

(Sum and Dif Formula) tan(u+v)

### tanu-tanv/1+tanutanv

(Sum and Dif Formula) tan (u-v)

### +-√1-cosx/2

(Half Angle) sinx/2=

### +-√1+cosx/2

(Half Angle) cosx/2=

### 1-cosx/sinx

(Half Angle) tanx/2=