Question

Q2. Let ā=i+2j & D = 2i +j. If |ā| = lb|. Are the vectors ā & b equal?​

Answer 1

Answer:

i did not understand

Step-by-step explanation:

Answer 2

Step-by-step explanation:

Let

a=i+2j+3kb=3i+ja+b=i+2j+3k+3i+ja+b=4i+3j+3kSounitvectorinthedirectionofa+b∣∣∣∣a+b∣∣∣∣=42+32+32=16+9+9=34