Question

If a line has dr’s 1, −2, 3 then write its dc’s​

Answer 1

Answer:

please mark as brainlist answer

The direction ratio of the line are proportional to 2,−1,−2. So, its direction cosines are

2

2

+(−1)

2

+(−2)

2

2

,

2

2

+(−1)

2

+(−2)

2

−1

,

2

2

+(−1)

2

+(−2)

2

−2

or,

3

2

,

3

−1

,

3

−2