f(r.y2)4ry t and u is the unit vector in the direction of (4, 2,-5), men the drectional denvative at the point (-5,3, 1) mthe drecon ofw f. (-5,3,1) - D. f(-5,3, 1) -

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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(r..2) 4ry t and u is the unit vector in the direction of (4, 2,-5), men the drectional denvative at trhe piolnt (-5, 3, 1) n the direction of u
fa (-5,3,1) - D. (-5,3, 1)
Transcribed Image Text:(r..2) 4ry t and u is the unit vector in the direction of (4, 2,-5), men the drectional denvative at trhe piolnt (-5, 3, 1) n the direction of u fa (-5,3,1) - D. (-5,3, 1)
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