Question

If A = 0.4i +0.3j+ ck is a unit vector. The value of c is √K. Find the value of K.​

Answer 1

Answer:

Given, a is a unit vector. so, | a | = 1. Now, 1 = √ ( 0.3)² + ( 0.4)² + c² 1 = 0.9 + 0.16 + c² 1 - 0.25 = c² c = √0.75