Open Question
Write each function in terms of its cofunction. Assume all angles involved are acute angles. See Example 2.sin 45°
3. Unit Circle
Trigonometric Functions on the Unit Circle
Struggling with Trigonometry?
Join thousands of students who trust us to help them ace their exams!Watch the first video
1:58 minutesOpen Question
In Exercises 28–29, find a cofunction with the same value as the given expression.sin 70°
Verified video answer for a similar problem:This video solution was recommended by our tutors as helpful for the problem above
Video duration:
1mWas this helpful?
6:34mWatch next
Master Sine, Cosine, & Tangent on the Unit Circle with a bite sized video explanation from Patrick
Start learningRelated Videos
Related Practice
Trigonometric Functions on the Unit Circle practice set
Problem sets built by lead tutorsExpert video explanations