Given two vectors A = i + j and B = 3i + 4j, what is the approximate angle between them calculated using the dot product formula?
Q1. Given two vectors A = i + j and B = 3i + 4j, what is the approximate angle between them calculated using the dot product formula?
Answer: 45 degrees
Explanation: Using cosθ = (A.B)/(|A||B|), (3+4+0)/(sqrt(26)*sqrt(2)) leads to 45 degrees. Option A is a common guess for perpendicular vectors.