JEE Main 2025 Mathematics question
Consider two vectors and , λ > 0. The angle between them is given by . Let , where is parallel to and is perpendicular to . Then the value is equal to
Answer: (3)
Solution
Using dot product, . , . , . Sum = 14
Consider two vectors and , λ > 0. The angle between them is given by . Let , where is parallel to and is perpendicular to . Then the value is equal to
Using dot product, . , . , . Sum = 14