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COFUNCTIONS
SOH CAH TOA
EVEN & ODD FUNCTIONS
PERIODIC FUNCTIONS
TRIG FUNCTIONS
100
Find the cofunction of sin 48°
cos 42°
100
OPPOSITE = 7 ADJACENT = 2 What is sin?
7√53/53
100
Find sin (-60°)
-√3/2
100
Find cos 450°
0
100
sin = 4/7 cos = √33/7 Find COT
√33/4
200
Find the cofunction of csc 85.5°
sec 4.5°
200
OPPOSITE = 8 HYPOTENUSE = √80 What is sec?
√5
200
Find sec (-225°)
- √2
200
Find sec 510°
-2√3/3
200
sin = 5/8 Find COT
√39/5
300
What is the cofunction of cos π/3?
sin π/6
300
ADJACENT = 3 HYPOTENUSE = 10 What is cot?
3√91/91
300
Find cot (-11π/6)
√3
300
Find csc 2025°
- √2
300
cos = √7/3 Find TAN
√14/7
400
What is the cofunction of tan 2π/7 ?
cot 3π/14
400
OPPOSITE = √32 ADJACENT = 7 What is csc?
9√2/8
400
Find tan (-8π/6)
- √3
400
Find tan 73π/6
√3/3
400
tan 45° cos 45°
√2/2
500
What is the cofunction of sec 5π/17 ?
csc 7π/34
500
OPPOSITE = √119 HYPOTENUSE = 12 What is cos?
5/12
500
Find sec (-10π/6)
2
500
Find csc 305π/3
-2√3/3
500
cot 60° cos π/6
1/2