S(-1,3,-1)//// ne dodelal
Date: 2015-10-07; view: 409.
S(-3,-3,3)
137. Find equation of the straight line through the given two points: M(5,3,7) and N(5,0,0).
= 
= 
138. Find parametric form of the equation 
X=1 y=2t+2 z=-5t-3
139. What is the relative positions of the given two straight lines:
Answers: Skewed// Intersecting// parallel//
coincides// none of these
140. What is the condition for the parallelism of the straight line 
and the
plane Ах+Ву+Cz+D=0? Не сссы! Тут ответишь сразу, если знаешь геометрию ^^
141. What is the relative positions of the plane x-3y+4z-1=0 and the straight line 
o Straight line is perpendicular to the plane
o Straight line is parallel to the plane
o Straight line lies in the plane
o Straight line intersects the plane
o None of these
142. Find equation of the straight line passing through the point M(1,5,-1) and parallel to the line 
143. Represent the straight line 
in canonical form.
= 
= 
144. Find angle between the straight lines 
and 
145. Find angle between the straight line 
and the plane 4x+2y+2z-5=0.
arccos( 
146. Point A given in polar coordinates: A (6, 
). Find rectangular coordinates of point A.
147. In the triangle ABC find equation of the altitude (height) AH if: A(1,-8), B(7,2), C(-1,2). XD Писец, Триндец, Апокалипсис!
148. Find angle between the given two planes: x-3y+5=0 and 2x-y+5z-16=0.
Arccos( 
) Not my answer: 
149. Find angle between the given two planes: x+3y+z-1=0 and x+z-1=0
Arccos( 
150. Find angle between the given two planes: 4x-5y+3z-1=0 and x-4y-z+9=0
Arccos( 
151. Find distance between points A(4, -5) and B(7, -1).
Ans: 5 4 3 2 7
152. Find distance from point (2,5) to the line 6x+8y-5=0.
D=4,7
153. Find equation of the line through points (-1,2) and (2,1).
o x + 3y - 7 = 0
o x + 3y - 5 = 0
o x - 3y - 5 = 0
o -x + 3y + 5 = 0
o None of these
154. Find angle between the straight lines y = 2x + 4 and y = 3x – 1.
Arccos( 
)
155. Find cosine of the angle between vectors____AB and___AC if A(0,3,6) , B(9,3,6) , C(12,3,3) .
I have wrong answer
156. Find cosine of the angle between vectors AB and AC if A(3,3,1) , B(5,1,2) , C(4,1,3)
arccos 
157. Find the equation of the straight line that passes through the origin and is parallel to the straight line y=2x+6.
Y=2x
158. Put the equation 3 
+4 
=24in canonical form and find distance between foci.
=1 c= 
159. Find equation of the plane through the point (-2,7,3) and parallel to the plane x-4y+5z-1=0.
x-4y+5z+6=0
160. Find equations of asymptotes of the hyperbola 2x2 - 3y2 = 6.
161. Parabola y2=2px passes through the point A(2,4). Find parameter of the parabola.
p=4
162. Find foci of the curve 
C= 
163. If C(-9,-12) is the midpoint of the line segment AB and coordinates of A(-5,-7), find
coordinates of point B.