यदि a = (0, -1, 2), b = (1, 0, -1) और c = (2, -1, 0) है, तो a - b - c के समानांतर मात्रक (इकाई) सदिश कौन-सा है?

If a = 2î + 3ȷ and b = î - ȷ, then a - b is:

If vectors a and b are perpendicular with |a| = 5 and |b| = 12, then |a + b| is equal to:

Find the magnitude of vector a given by a = (î - 3ȷ + 2k̂) × (-î + 3k̂).