Give the equation of the horizontal asymptote, if any, of the function.h(x) = 
A. y = 
B. no horizontal asymptote
C. y = 6
D. y = 0
Answer: B
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Find all the second order partial derivatives of the given function.f(x, y) = cos (xy2)
A. 
= - y2 sin xy2; 
= 2y
; 
= 
= 2
B. 
= - y2 sin xy2; 
= 2[ sin (xy2)- 2y2 cos (xy2)] ; 
= 
= 2y [sin (xy2)-y2 cos (xy2)]
C. 
= -y4 cos xy2; 
= - 2x[2xy2 cos (xy2) + sin(xy2)]; 
= 
=
- 2y[xy2 cos (xy2) + sin(xy2)];
D. 
= y2 sin xy2; 
= 2[2y2 cos (xy2) - sin (xy2)] ; 
= 
= 2y[y2 cos (xy2) - sin (xy2)]
Use the fundamental identities to find the value of the trigonometric function.Find tan ? if cos ? = 
and ? is in quadrant IV.
A. - 
B. - 
C. - 
D. 2
Match to the equivalent expression.x1/4
A. x-4
B. 
C. 
D. 
Find the rectangular coordinates of the point with the given polar coordinates.(3, 90°)
A. (3, 0) B. (-3, 0) C. (0, 3) D. (0, -3)