Find for and .

Answer and explanation

Correct answer: B.

  1. Step 1: .
  2. Step 2: .
Answer
.
Why not the others: : This is ; the order changes the sign. : Plus signs were used in the determinants. : The components were permuted.

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