If λ(3î + 2ĵ – 6k̂) is a unit vector, then the value of λ is : (1)
A. ± 7
B. ± \(\sqrt{43}\)
C. ± \(\frac{1}{\sqrt{43}}\)
D. ± \(\frac{1}{7}\)
Answer:C
If λ(3î + 2ĵ – 6k̂) is a unit vector, then the value of λ is : (1)
A. ± 7 B. ± \(\sqrt{43}\) C. ± \(\frac{1}{\sqrt{43}}\) D. ± \(\frac{1}{7}\)