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Three Dimensional Geometry

Question
CBSEENMA12036233

The angle between the lines 2x = 3y = − z and 6x = − y = − 4z is

  • 0o

  • 90o

  • 45o

  • 30o

Solution

B.

90o

Angle between the lines 2x = 3y = - z & 6x = -y = -4z is 90°
Since a1a2 + b1b2 + c1c2 = 0

Some More Questions From Three Dimensional Geometry Chapter

Find the direction cosines of x, y and z-axis.