A point lying on the terminal side of angle ? is given. Find the exact value of the indicated trigonometric function of ?.(-7, 8) Find cot ?.
A. - 
B. 
C. - 
D. - 
Answer: A
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Solve the problem.The surface of a snow-covered mountainside can be modeled by the function f(x,y) = e-((x - 0.5)2 + (y - 0.7)2),where x and y are coordinates in the horizontal plane (xy-plane). Find a unit vector that indicates the direction an avalanche will move initially if it begins at the point 
. Assume that the avalanche moves along the path of steepest descent.
A. u = 
B. u = 
C. u = 
D. u = 
Find the limit of the sequence or determine that the limit does not exist.an = 
A. ln 8 B. 1 C. does not exist D. 0
Provide an appropriate response.Show that f(x, y, z) = x5y3z5 is continuous at every point (x0, y0, z0).
What will be an ideal response?
Evaluate the logarithm without the use of a calculator.log1/3
A. - 
B. 
C. 3
D. - 