Find all the second order partial derivatives of the given function.f(x, y) = x2 + y - ex+y
A. fxx(x, y) = 2 - ex+y; fyy(x, y) = - ex+y; fyx(x, y) = fxy(x, y) = -ex+y
B. fxx(x, y) = 2 + ex+y; fyy(x, y) = ex+y; fyx(x, y) = fxy(x, y) = ex+y
C. fxx(x, y) = 2 - y2ex+y; fyy(x, y) = -x2ex+y; fyx(x, y) = fxy(x, y) = - y2ex+y
D. fxx(x, y) = 1 - ex+y; fyy(x, y) = - ex+y; fyx(x, y) = fxy(x, y) = -ex+y
Answer: A
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Find an antiderivative of the given function.24x2 - 8x + 9
A. 9x3 - 4x2 + 9x B. 8x3 - 4x2 + 10x C. 8x3 - 4x2 + 9x D. 8x3 - 3x2 + 9x
Find all the roots of the function. Use preliminary analysis and graphing to determine good initial approximations. Round to six decimal places.f(x) = cos 2x - 
+ 3
A. x ? -2.579947, 2.801947 B. x ? -2.690947, 2.690947 C. x ? -2.801947, 2.579947 D. x ? -4.190947, 1.190947
Find an equation for the graph.
A. y = 
cos (4x)
B. y = 
cos 
C. y = 
cos 
D. y = cos (4x)
Determine algebraically whether the function is even, odd, or neither.f(x) = 
A. even B. odd C. neither