Solve the problem.Find the derivative of the function 
at the point 
in the direction in which the function decreases most rapidly.
A. -6
B. -21
C. -14
D. -7
Answer: D
Mathematics
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Sketch the given surface.x = 1 - y2 - z2
What will be an ideal response?
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Evaluate the function.Find f(-2) if f = {(-2, 3), (3, 0), (0, 5), (5, -2)}
A. None of these B. (3, 5) C. 3 D. 5
Mathematics
Find the focus and directrix of the parabola with the given equation.3y2 = -4x
A. Focus: 
, directrix: y = 
B. Focus: 
, directrix: x = 
C. Focus: 
, directrix: y = 
D. Focus: 
, directrix: x = - 
Mathematics
Use the unit circle and any appropriate relationship among the trigonometric functions to find the value.
csc 
A. - 
B. - 
C. - 
D. - 
Mathematics