If you fail, never give up because FAIL means 'First Attempt In Learning'.— A. P. J. Abdul Kalam

Vector Algebra — quick quiz

5 real JEE Main questions on Vector Algebra. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 5

HARD

Let a = i + j + k, b = i - j + k, and c = i + 2j - k. A vector perpendicular to both a and c and making an obtuse angle with b is: