Maths-

General

Easy

Question

# is equal to

- 0
- 2
- e
none of these

none of these

## The correct answers are: 0, e

### Let direction cosines of straight line be l, m, n

\ 4l + m + n = 0

l – 2m + n = 0

Þ Þ

\ Equation of straight line is .

Hence (c) is the correct choice.

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