Question

= 0.4 i +0.3 j+ck be a unit vector, then what is the value of c?​

Answer 1

Answer:

square root of (0.16+0.09+c^2)=1

0..25+c^2=1

c^2=0.75

c=√(0.75)

Answer 2

Answer:

Since the magnitude of unit vector is 1