EASY
12th West Bengal Board
IMPORTANT
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The shortest distance between two coplanar lines must be zero.

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Important Questions on Straight Line in Three Dimensions

EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 24 - Straight Line in Three Dimensions>EXERCISE>Q 2
If two lines do not intersect then they must be parallel.
EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 24 - Straight Line in Three Dimensions>EXERCISE>Q 3

Two straight lines with direction ratios l1, m1, n1 and l1, m1, n1 are at right angle if

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12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 24 - Straight Line in Three Dimensions>EXERCISE>Q 3
The lines x1=y2=z3 and x-1-2=y-2-4=z-3-6 are
EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 24 - Straight Line in Three Dimensions>EXERCISE>Q 3
The lines r→=i^+j^-k^+λ(2i^+3j^-6k^) and r→=2i^-j^-k^+μ(6i^+9j^-18k^) are
EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 24 - Straight Line in Three Dimensions>EXERCISE>Q 3
The equations of the line joining (-2, 4, 2) and (7, -2, 5) are
EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 24 - Straight Line in Three Dimensions>EXERCISE>Q 3
The angle between the lines x+12=y-32=z-4-1 and x-41=y-42=z+12 is
EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 24 - Straight Line in Three Dimensions>EXERCISE>Q 3
The angle between the straight lines x+12=y-25=z+34 and x-11=y+22=z-3-3 is
EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 24 - Straight Line in Three Dimensions>EXERCISE>Q 3
Which point does lie on r→=2i-j+λ(2i+j-3k)?