Question

the value of m is if i+2j-3k is parallel to 3i+mj-9k​

Answer 1

Answer:

m=6

Explanation:

agar 2 unit vector parallel hoga to uska cross product will be 0

Answer 2

The value of m is 6.

Explanation:

It is given that,

Vector A, $(i+2j-3k)$

Vector B, $(3i+mj-9k)$

We need to find the value of m if vectors A and B are parallel to each other. If A and B are parallel to each other then,

$A=xB$

$(i+2j-3k)=x(3i+mj-9k)$'

On comparing, we get :

3x = 1, mx = 2, 9x = 3

$x=\dfrac{1}{3}$

So, m = 6

So, the value of m is 6. Hence, this is the required solution.

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