Question

The lines = – $\hat { \mathrm { j } }$ + l (2 $\hat { \mathbf { i } }$ + $\hat { \mathbf { k } }$ ) and

$\overrightarrow { \mathbf { r } }$ = 2 + m( + $\hat { \mathrm { j } }$ – $\hat { \mathbf { k } }$ ) :

• A. Are parallel
• B. Do not intersect
• C. Intersect r = 3 – $\hat { \mathrm { j } }$ +
• D. None of these

Answer 1

Answer: (B)

Do not intersect

Answer 2

Line = + l and = + l do not intersect if ( – ). ( × ) ¹ 0 and are not parallel if b1 ¹ b2.