171. |
If the direction ratios of two lines are given by 3lm-4ln+mn=0 and l+2m+3n=0, then the measure of the angle between them is _____
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Answer:
Option (a) |
172. |
The line passing through the origin and containing the line is _____
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Answer:
Option (b) |
173. |
A line makes angles of equal measures θ with X-axis and Z-axis. If it makes an angle of measure β with Y-axis and sin2β=3 sin2θ then cos2θ =_____
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Answer:
Option (a) |
174. |
For what values of k, becomes direction cosines of a line ?
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Answer:
Option (a) |
175. |
The equation of th plane passing through (2, 3, 1) and (4, -5, 3) and parallel to X-axis is _____
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Answer:
Option (d) |
176. |
Which of the following points lie on the line , ?
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Answer:
Option (d) |
177. |
The equation of the plane passing through the line of intersection of the planes x+2y+3z=4 and 2x+y-z=-5 and perpendicular to the plane 5x+3y+6x+8=0 is _____
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Answer:
Option (c) |
178. |
The equation of the plane and parallel to X-axis is _____
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Answer:
Option (a) |
179. |
If the direction cosines of perpendicular lines are given by al + bm + cn=0 and fmn + gnl +hlm=0, then _____
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Answer:
Option (c) |
180. |
If P (0,1,0) are Q (0,0,1) are two points, then projection of on the plane x+y+z=3 is _____
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Answer:
Option (c) |