The Total solution for NCERT class 6-12
Answer 1 :
Showthat the line through the points (1, -1, 2) and (3, 4, -2) is perpendicular to the linethrough points (0, 3, 2) and (3, 5, 6).
Answer 2 :
Showthat the line through the points (4, 7, 8) and (2, 3, 4) is parallel to the line through thepoints (-1, -2, 1) and (1, 2, 5).
Answer 3 :
Answer 4 :
Answer 5 :
Showthat the line joining the origin to the point (2, 1, 1) isperpendicular to the line determined by the points (3, 5, -1) and (4, 3, -1).
Answer 6 :
Findthe equation of a line parallel to x-axis and passing through the origin.
Answer 7 :
Answer 8 : 1.
find the angle between thefollowing pairs of line :
Answer 9 : 1.
find the angle between thepairs of lines with directions ratios proposal to a, b, c and b - c, c - a, a -b.
Answer 10 :