If A=x²yz i−2xz³ j+xz² k, B=2z i+y j−x² k, then the value of ∂²(A×B)/∂x∂y at…
PYQ UPPSC LT Grade (Assistant Teacher) 2025
If A=x²yz i−2xz³ j+xz² k, B=2z i+y j−x² k, then the value of ∂²(A×B)/∂x∂y at (1,0,−2) is:
- A.
−8i−8j
- B.
−4i−8j
- C.
−4i−4j
- D.
−8i−4j
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