Grade 12Analytical Geometry
Let a=i-j,b=j-k,c=k-i and d is a unit vector such that a.d=0=[bcd].Find d.
Let a=i-j,b=j-k,c=k-i and d is a unit vector such that a.d=0=[bcd].Find d.
1 Answer
Arun
let d = xi + y j + z k
as a.d = 0
hence
x – y = 0
also
d. (b x c) = 0
now b x c = i + j + k = 0
hence d. (b x c) = x + y + z = 0
now you can solve
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