Question

Calculate the angle between the vectors : (i) A = 2 i + 2 j - k, B = 6 i - 3j+ 2 k (ii) A = i + 2 j - k, B =- i + j - 2 k (iii) A = i + j + k, B =-2 i-2 j - 2 k +, î (iv) A = 4 i +63 -3 k, B =-2 i-5j + 7 k ​

Answer 1

Answer:

sorry I don't understand write it clearly