1. Find the vector form of the equation of the plane that passes through the point P0 = (1, −2, 3) and has normal vector ~n =< 3, 1, −1 >.
2. Find an equation for the plane that contains the line x = −1 + 3t, y = 5 + 3t, z = 2 + t and is parallel to the line of intersection of the planes x −2(y −1) + 3z = −1 and y = −2x −1 = 0.
3. Find the point of intersection between the lines: < 3, −1, 2 > + t < 1, 1, −1 > and <−8, 2, 0 > + t < −3, 2, −7 >.
4. Show that the lines x + 1 = 3t, y = 1, z + 5 = 2t for t ∈ R and x + 2 = s, y − 3 = −5s, z + 4 = −2s for t ∈ R intersect, and find the point of intersection.
5. Find the point of intersection between the planes: −5x + y −2z = 3 and 2x −3y + 5z = −7.
1
Expert's answer
2021-07-13T13:16:55-0400
1. The standard form of the equation of the plane is
3(x−1)+1(y−(−2))−1(z−3)=0
3x+y−z+2=0
Parameters: y=s,z=t
x=−32−31s+31t
y=0+1s+0t
z=0+0s+1t
The vector form of the equation of the plane is
r=⟨−32,0,0⟩+s⟨−31,1,0⟩+t⟨31,0,1⟩
2.
x−2(y−1)+3z=−1y=−2x−1
y=−2x−1x+4x+2+3z=−1
y=−2x−1z=−35x−1x∈R
The intersection between the planes is the line :
⟨0,−1,−1⟩+t⟨1,−2,−35⟩,t∈R
The line
1x−0=−2y+1=−35z+1
An equation for the plane parallel to the line of intersection of the planes
ax+by+cz+d=0,
where
a−2b−35c=0
The plane that contains the line x=−1+3t,y=5+3t,z=2+t
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