To further justify the Cofunction Theorem, use your calculator to find a value for each pair of trigonometric functions below. In each case, the trigonometric functions are cofunctions of one another, and the angles are complementary angles. Round your answers to four places past the decimal point.
?
sin 23°, cos 67°
?
A. sin 23° = 0.3907, cos 67° = -0.9205
B. sin 23° = -0.3907, cos 67° = 0.9205
C. sin 23° = 0.3977, cos 67° = 0.9135
D. sin 23° = 0.3907, cos 67° = 0.3907
E. sin 23° = 0.3857, cos 67° = 0.9205
Answer: D
Mathematics
You might also like to view...
Graph the polar equation.r = 3(2 + 2 sin ?)
A. 
B. 
C. 
D. 
Mathematics
Choose the most reasonable unit of measure.Paperback book height 19 
(mm, cm, m, km)
A. m B. mm C. cm D. km
Mathematics
Solve. Provide answers in interval notation.x2 + 5x - 6 > 0
A. (1, ?) B. (-6, 1) C. (-?, -6) D. (-?, -6) ? (1, ?)
Mathematics
Answer the question.Consider the affinely independent set S = {v1, v2, v3} in ?2. These points form a triangular region. If the barycentric coordinates of a point p are 
then where is p with respect to the triangle?
A. Vertex B. Outside C. Edge D. Inside
Mathematics