Find the magnitude of .

Answer and explanation

Correct answer: B.

  1. Step 1: .
  2. Step 2: So .
Answer
.
Why not the others: : The absolute values were added without squaring. : The square root was omitted. : The largest component was given.

Practise more Spatial Geometry and Integral Calculus.

Free questions with an explanation for every one, and full timed Thanawiya Amma (Egypt) mock tests.

All Spatial Geometry and Integral Calculus questionsTake a mock test

More Spatial Geometry and Integral Calculus questions