18 5 -7 - 4 Is u in the plane in R° spanned by the columns of A? Why or why not? Let u = - 12 and A = 1 1 Select the correct choice below and fill in the answer box to complete your choice. (Type an...

Please answer this first question The second one is a sample problem


Extracted text: 18 5 -7 - 4 Is u in the plane in R° spanned by the columns of A? Why or why not? Let u = - 12 and A = 1 1 Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or decimal for each matrix element.) O A. No, the reduced row echelon form of the augmented matrix is which is an inconsistent system. O B. Yes, multiplying A by the vector writes u as a linear combination of the columns of A. (1) More Click to select and enter your answer(s). esc 000 F1 F2 F3 O00


Extracted text: = Review Test: Final Exam (online) Test Score: 0%, 0 of 35 points Score: 0 of 1 Question 5, 1.4.13 > - 24 5 -7 Let u= 21 and A = Is u in the plane in R spanned by the columns of A? Why or why not? -4 12 Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or decimal for each matrix element.) 1,5 Yes, multiplying A by the vector writes u as a linear combination of the columns of A 4.5 O B. No. the reduced row echelon form of the augmented matrix is which is an inconsistent system. Question is complete. Tap on the red indicators to see incorrect answers. 吕0 F3 esc 000 F4 F5 F6 F7 F8 F9 F10 F1 云