Solve the problem.Use the exact value cos 72° = 
and identities to find the exact value of sin 72°.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
You might also like to view...
Graph the pair of parametric equations with the aid of a graphing calculator.x = 7t - 7 sin t, y = 7 - 7 cos t, -2? ? t ? 2?
A. 
B. 
C. 
D. 
Mathematics
Construct a pie chart illustrating the given data set.A cereal manufacturer wants to introduce their new cereal breakfast bar. The marketing team traveled to various states and asked 900 people to sample the breakfast bar and rate it as excellent, good, or fair. The following data give the rating distribution.ExcellentGoodFair180450270 
A. 
B. 
C. 
D. 
E. 
Mathematics
Find the exact value of the following expression without using a calculator.csc(?/2)
A. 1 B. 0 C. -1 D. Undefined
Mathematics
Graph the piecewise function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics