Find fx, fy, and fz.f(x, y, z) = cos x sin2 (yz)
A. fx = sin x sin2 (yz); fy = - cos x sin (yz) cos (yz); fz = -cos x sin (yz) cos (yz)
B. fx = -sin x sin2 (yz); fy = 2z cos x sin (yz) cos (yz); fz = 2y cos x sin (yz) cos (yz)
C. fx = sin x sin2 (yz); fy = -2z cos x sin (yz) cos (yz); fz = - 2y cos x sin (yz) cos (yz)
D. fx = -sin x sin2 (yz); fy = z cos x sin (yz) cos (yz); fz = y cos x sin (yz) cos (yz)
Answer: B
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?
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?
?
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