Find the value of d2y/dx2 at the point defined by the given value of t.x = t, y = 
, t = 3
A. - 
B. 
C. - 
D. - 
Answer: C
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = ex+y
A. Domain: all points in the first quadrant of the xy-plane; range: all real numbers; level curves: lines x + y = c B. Domain: all points in the xy-plane; range: real numbers z > 0; level curves: lines x + y = c C. Domain: all points in the xy-plane; range: all real numbers; level curves: lines x + y = c D. Domain: all points in the first quadrant of the xy-plane; range: real numbers z > 0; level curves: lines x + y = c
Provide an appropriate response.Derive a series for ln(1 + x2) for x > 1 by first finding the series for 
and then integrating. 
A. 2 ln x + 
B. ln x + 
C. ln x + 
D. 2 ln x + 
Provide an appropriate response.
Find sin B as a fraction in lowest terms if a = 9, b = 12, and c = 15. 
A. 
B. 
C. 
D. 
For the pair of functions, find the indicated domain.f(x) = 
, g(x) = x + 1Find the domain of f ? g.
A. (-?, ?) B. (-?, -4) ? (-4, ?) C. (-?, -5) ? (-5, ?) D. (-?, -5] ? [-5, ?)