(c) If f is a C² scalar function, then V × (Vƒ) = 0. True False (d) The lines 1₁ (t) = (1 − t, 1+ t, 2t) and 1₂ (t) = (4 - 2t, 3 + 2t, 1 + 5t) are parallel. True False

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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(c) If f is a C² scalar function, then V × (Vƒ) = 0.
True
False
(d) The lines 1₁ (t) = (1 − t, 1 + t, 2t) and 1₂ (t)
=
True
False
(4-2t, 3 + 2t, 1 + 5t) are parallel.
Transcribed Image Text:(c) If f is a C² scalar function, then V × (Vƒ) = 0. True False (d) The lines 1₁ (t) = (1 − t, 1 + t, 2t) and 1₂ (t) = True False (4-2t, 3 + 2t, 1 + 5t) are parallel.
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