Use the cofunction and reciprocal identities. Round to the nearest ten-thousandth when appropriate.tan 71° = 
19° = 
A. sin, tan
B. cot, sec
C. cot, cot
D. sec, cot
Answer: C
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Find the function value to four decimal places.Find cos ? when sin ? = 0.8000 and tan ? < 0.
A. -0.6000 B. -0.6667 C. -0.8660 D. -1.7321
Name the property used to go from step to step indicated by an a), b), c), or d).
What will be an ideal response?
Answer the question based on the following situation:An honest coin is tossed 1600 times. The random variable X denotes the total number of heads that come up in the 1600 tosses.What are the chances that X is between 780 and 820?
A. approximately 95% B. approximately 68% C. approximately 34% D. approximately 80% E. none of these
Find the work done by a force F=i+5j+7k that moves an object from the point (1,0,3) to the point (4,2,7) along a straight line. The distance is measured in meters and the force in newtons.
What will be an ideal response?