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8.169. Преобразовать выражение w=x(del u)/(del x)+y(del u)/(del y), перейдя к толярным координатам.

88.169169. Преобразовать выражение w=x∂u∂x+y∂u∂y w=x \frac{\partial u}{\partial x}+y \frac{\partial u}{\partial y} , перейдя к толярным координатам.

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Q. 88.169169. Преобразовать выражение w=x∂u∂x+y∂u∂y w=x \frac{\partial u}{\partial x}+y \frac{\partial u}{\partial y} , перейдя к толярным координатам.
  1. Calculate Tape Rolls: Divide the total amount of tape needed by the amount of tape on each roll. 8,000 cm÷2,000 cm/roll=4 rolls8,000 \, \text{cm} \div 2,000 \, \text{cm/roll} = 4 \, \text{rolls}
  2. Verify Division: Check if the division is correct. 8,0008,000 divided by 2,0002,000 is indeed 44.
  3. Finalize Order: Conclude the number of rolls needed.\newlineThe electrician needs to order 44 rolls of tape.

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