NCERT Miscellaneous Exercise Q13 - Vector Algebra
Question: The scalar product of i-hat+j-hat+k-hat with a unit vector along the sum of 2i-hat+4j-hat-5k-hat and lambda i-hat+2j-hat+3k-hat equals one. Find lambda.
Answer: lambda = 1.
Full step-by-step NCERT solution with diagrams on Something by Zero.