Use a half-angle identity to find an exact value for the following, given the information about x. Find tan 
, given that cos x = - 
and x terminates in 180° < x < 270°.
A. - 
B. 
C. - 
D. 
Answer: A
Mathematics
You might also like to view...
Solve the problem.The number of gallons of water in a swimming pool t minutes after the pool has started to drain is 
How fast is the water running out at the end of 13 minutes?
A. 1,225 gal/min B. 350 gal/min C. 700 gal/min D. 2,450 gal/min
Mathematics
Convert 0.81 micrograms to nanograms.
a. 0.00081 ng b. 0.081 ng c. 8.1 ng d. 810 ng
Mathematics
Find the domain of the rational function.g(x) = 
A. {x|x ? 2, 4} B. {x|x ? -2, -4} C. {x|x ? -2, -4, -5} D. all real numbers
Mathematics
Answer the question according to what the textbook states.Which of these is NOT an end-of-chapter component designed to help you understand the concepts of the chapter?
A. Calculator exercises B. Highlights C. Vocabulary checks D. Chapter test
Mathematics