Use logarithmic differentiation to find the derivative of y.y = cos x
A. cos x
B. cos x
C. 
D. cos x
Answer: D
Mathematics
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Find the exact value of the expression.sin 20° cos 100° + cos 20° sin 100°
A. 
B. 
C. - 
D. - 
Mathematics
Graph the function y = g(x), given the graph of y = f(x). g(x) = f
A. 
B. 
C. 
D. 
Mathematics
Solve. Round to the nearest tenth, if necessary.Find the amount of increase and the percent increase if the original amount is 260 and the new amount is 338.
A. 78; 40% B. 78; 30% C. 78; 130% D. 78; 25%
Mathematics
Find the approximate value of x using a scientific calculator. Round to six decimal places.log x = -1.4707
A. 0.03383 B. 4.352281 C. 29.559698 D. 0.712738
Mathematics