NCERT Miscellaneous Exercise Q12 - Vector Algebra
Question: Let a = i-hat+4j-hat+2k-hat, b = 3i-hat-2j-hat+7k-hat and c = 2i-hat-j-hat+4k-hat. Find d perpendicular to both a and b with c · d = 15.
Answer: (160/3) i-hat - (5/3) j-hat - (70/3) k-hat.
Full step-by-step NCERT solution with diagrams on Something by Zero.