Find all the first order partial derivatives for the following function.f(x ,y, z) = (sin xy)(cos yz2)
A. fx(x, y) = (y cos xy)(cos yz2); fy(x, y) = (z2 sin xy)(sin yz2) - (x cos xy)(cos yz2); fz(x, y) = 2(yz sin xy)(sin yz2)
B. fx(x, y) = (y cos xy)(cos yz2); fy(x, y) = (x cos xy)(cos yz2) - (z2 sin xy)(sin yz2); fz(x, y) = -2(yz sin xy)(sin yz2)
C. fx(x, y) = (y cos xy)(cos yz2); fy(x, y) = (x cos xy)(cos yz2); fz(x, y) = -2(yz sin xy)(sin yz2)
D. fx(x, y) = (y cos xy)(cos yz2); fy(x, y) = (x cos xy)(cos yz2) - (z2 sin xy)(sin yz2); fz(x, y) = 2(yz sin xy)(sin yz2)
Answer: B
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A. -2
i
B. -7
i
C. 2
i
D. -14i
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Fill in the blank(s) with the appropriate word(s).
Express in terms of a base raised to a positive exponent. Then simplify, if possible.(x + 2)-2
A. (x + 2)2
B. 
C. - 
D. 