Question

If A = 0.4 i +0.3 juck be a unit vector, then what is the value of c?​

Answer 1

Answer:

$|a| = \sqrt{ {0.4}^{2} + {0.3}^{2} + {c}^{2} } = 1 \\ 0.16 + 0.9 + c = 1\\ c = 1 - 1.06 = - 0.06$