9 If a→=3 and -2≤k≤1, then what can you say about k a→ - Maths - Vector Algebra

Question

9   I f   a → = 3   a n d   - 2 ≤ k
≤ 1 ,   t h e n   w h a t   c a n   y o u
  s a y   a b o u t   k a → ?

Rishabh Mittal · Accepted Answer

Dear Student,

If -2≤k≤1Then, 0 ≤ k≤ 2Now,k
a→=k a→=3 kAs,0 ≤ k≤ 20 ≤3  k≤ 60 ≤k
a→≤ 6So, value of k
a→ can be any value from the interval 0,6

Regards

9 . I f a → = 3 a n d - 2 ≤ k ≤ 1 , t h e n w h a t c a n y o u s a y a b o u t k . a → ?