السؤال 3 If F= (3t^2+4t)i+ (2t-5) j +4t^3 k then Fdt is 42i-j+80k IO 42i + 2j - 80k .II O 421-2j+80k.II O

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Q: 3 then Fdt is If F=(3t^2+4t)i+ (2t-5) j+4t^3 k 42i-j+80k I O 42i + 2j-80k .II O 421-21+80k.I O

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