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bennyanderson857
08.12.2020 •
Mathematics
Find parametric equations and symmetric equations for the line. (Use the parameter t.) The line through (5, 4, 0) and perpendicular to both i j and j k
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Ответ:
Step-by-step explanation:
Suppose u = i + j =
& v = j + k = ![\Big \langle 0,1,1 \Big\rangle](/tpl/images/0960/7141/efaed.png)
The direction vector for the line u*v is:
= (1-0) i - (1 - 0)j + ( 1- 0) k
= i - j - k
=![\Big \langle 1,-1,1 \Big\rangle](/tpl/images/0960/7141/8dc4b.png)
Hence, the equation of the line via the point (5,4,0 ) and the direction vector
is as follows:
r(t) = (5,4,0) + t![\Big \langle 1,-1,1 \Big\rangle](/tpl/images/0960/7141/8dc4b.png)
r(t) = (5+t, 4-t, t)
The symmetric equations of the line are:
x - 5 = -(y-4) = z
The parametric equation of the line is:
x = 5 + t , y = 4 - t , z = t
Ответ:
here u go
Step-by-step explanation:
i got x=20