Find all the first order partial derivatives for the following function.f(x, y, z) = cos x sin2 yz
A. 
= sin x sin2 yz; 
= -2z cos x sin yz cos yz; 
= - 2y cos x sin yz cos yz
B. 
= -sin x sin2 yz; 
= z cos x sin yz cos yz; 
= y cos x sin yz cos yz
C. 
= sin x sin2 yz; 
= - cos x sin yz cos yz; 
= -cos x sin yz cos yz
D. 
= -sin x sin2 yz; 
= 2z cos x sin yz cos yz ; 
= 2y cos x sin yz cos yz
Answer: D
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A. 15
B. 93
C. 23
D. 18
and 
, what is the value of w when
Write the set using set-builder notation.{-4, -3, -2, -1, . . .}
A. {x?x is an integer greater than -5} B. {x?x is an integer between -5 and 0} C. {-4, -3, -2, -1} D. {x?x is an integer}
Use a polar coordinate system to plot the point with the given polar coordinates.
A. 
B. 
C. 
D. 
Find the standard-form equation for an ellipse which satisfies the given conditions.An ellipse with foci at (1, -2) and (7, -2); major axis length of 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1