Let S = {1, x, x²} C F(R, R). Consider the following possible proof (blue text) that S is linearly independent: Suppose that (*) a + bx + cx²2 = 0. Since a = b = c = 0 is a solution to (*), it follows that S'is linearly independent. Choose the response that best describes the argument above. O This is a correct proof that S' is linearly independent. O S is linearly independent, but the proof is incorrect because we can't just assume that a + bx + cx² 0; this statement must be proven. O This argument would have correctly shown that S is linearly dependent if the writer had written "linearly dependent" instead of "linearly independent" at the end of the last sentence. O This proof can't be correct because S is linearly dependent. O S is linearly independent, but the proof is incorrect because the argument doesn't show that a = b = c = 0 is the only solution to (*).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Let S = {1, x, x²} C F(R, R). Consider the following possible proof (blue text) that S is linearly
independent:
Suppose that
(*)
a + bx + cx²
0.
Since a = 6 = c = 0 is a solution to (*), it follows that S is linearly independent.
Choose the response that best describes the argument above.
O This is a correct proof that S is linearly independent.
S is linearly independent, but the proof is incorrect because we can't just assume that a + br + cr?
0; this
statement must be proven.
O This argument would have correctly shown that S is linearly dependent if the writer had written "linearly dependent"
instead of "linearly independent" at the end of the last sentence.
O This proof can't be correct because S is linearly dependent.
O S is linearly independent, but the proof is incorrect because the argument doesn't show that a = b = c= 0 is the only
solution to (*).
Transcribed Image Text:Let S = {1, x, x²} C F(R, R). Consider the following possible proof (blue text) that S is linearly independent: Suppose that (*) a + bx + cx² 0. Since a = 6 = c = 0 is a solution to (*), it follows that S is linearly independent. Choose the response that best describes the argument above. O This is a correct proof that S is linearly independent. S is linearly independent, but the proof is incorrect because we can't just assume that a + br + cr? 0; this statement must be proven. O This argument would have correctly shown that S is linearly dependent if the writer had written "linearly dependent" instead of "linearly independent" at the end of the last sentence. O This proof can't be correct because S is linearly dependent. O S is linearly independent, but the proof is incorrect because the argument doesn't show that a = b = c= 0 is the only solution to (*).
Expert Solution
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S is linearly independent, but the proof is incorrect because the argument doesn't show that a=b=c=0 is the only solution to (*).

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