pls help me answer this, the first two questions only pls i need asap thank u

1 8 0 S: 2, 1 ,0 9R3 0 6 1 A. Show that S is a basis for R3. B. Apply the Gram-Schmidt Process on S to obtain an orthogonal basis 5'1. 1 C. Determine 2 . 0 31 D. Form another basis containing 8 0 1 , 0 6 1