Question

unit vector alongs 3i +3j is

Answer 1

Given: The vector 3i + 3j

To find: The unit vector along the given vector.

Solution:

• Now we have given the vector as 3i + 3j

• Let it be x.

• Then x(cap) = x / |x|

                  x(cap) = 3i + 3j / | 3i + 3j |

                  x(cap) = 3i + 3j / √3² + 3²

                  x(cap) = 3i + 3j / √9 + 9

                  x(cap) = 3i + 3j / √18

                  x(cap) = 3i + 3j / 3√2

                  x(cap) = i + j / √2

Answer:

               So the unit vector along 3i + 3j is (i + j) / √2

Answer 2

Step-by-step explanation:

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