Find the work done by F over the curve in the direction of increasing t.F = 
i + j + 6k; C: r(t) = t2i + t7j + tk, 0 ? t ? 1
A. W = ln
+ 13
B. W = ln
+ 
C. W = ln
D. W = ln
+ 
Answer: D
Mathematics
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Find the greatest common factor of the terms.56x2, 28x6
A. 28x2 B. 56x2 C. 14x4 D. 42x2
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Answer true or false. ? In Lobachevskian geometry, the sum of the measures of the angles of a triangle is greater than 180°.
What will be an ideal response?
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Is the pair of vectors 
and 
perpendicular?
?
A. no B. yes
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