Determine which sets in Exercises 1-8 are bases for ℝ 3 . Of the sets that are not bases, determine which ones are linearly independent and which ones span ℝ 3 . Justify your answers. 7. [ − 2 3 0 ] , [ 6 − 1 5 ]
Determine which sets in Exercises 1-8 are bases for ℝ 3 . Of the sets that are not bases, determine which ones are linearly independent and which ones span ℝ 3 . Justify your answers. 7. [ − 2 3 0 ] , [ 6 − 1 5 ]
Determine which sets in Exercises 1-8 are bases for ℝ3. Of the sets that are not bases, determine which ones are linearly independent and which ones span ℝ3. Justify your answers.
Solve the problem.
-1
-6
22) Let a1 =
1
a2
and b = -22
-2
-20
Determine whether b can be written as a linear combination of aj and a2. In other words, determine whether
weights x1 and x2 exist, such that x1 a1 + x2 a2 b. Determine the weights x1 and x2 if possible.
B) x1 = -1, x2 = -5
C) x1 = -2, x2 = -4
D) No solution
A) x1 = -2, x2 =-3
a=
= (1, 0, 1), b = (2, 1, -1) and c = (1,-1,4). Calculate
|ax (b + c).
Show that
1
-2
= R³.
span
3
1
Chapter 4 Solutions
Thomas' Calculus and Linear Algebra and Its Applications Package for the Georgia Institute of Technology, 1/e
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