Let V = P2 be the vector space of all polynomials of degree at most 2, with the usual definitions of addition and scalar multiplication, and define W C V by W3D {@o + a х + а2х? : аo, aj, а, € R with ao + aj + a, — 1} Which one of the following statements is true? O a. W is a subspace of V. O b. W is not closed under either addition or scalar multiplication. W is closed under addition, but not under scalar multiplication. O d. W is closed under scalar multiplication, but not under addition. О с.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Let V = P2 be the vector space of all polynomials of degree at most 2, with the usual definitions of addition and scalar multiplication,
and define W C V by
W :
{@о + ajx + арx* : аo, ај, аz €R with do +ај +а2 —D 1}
Which one of the following statements is true?
W is a subspace of V.
а.
O b. W is not closed under either addition or scalar multiplication.
c. W is closed under addition, but not under scalar multiplication.
O d. W is closed under scalar multiplication, but not under addition.
Transcribed Image Text:Let V = P2 be the vector space of all polynomials of degree at most 2, with the usual definitions of addition and scalar multiplication, and define W C V by W : {@о + ajx + арx* : аo, ај, аz €R with do +ај +а2 —D 1} Which one of the following statements is true? W is a subspace of V. а. O b. W is not closed under either addition or scalar multiplication. c. W is closed under addition, but not under scalar multiplication. O d. W is closed under scalar multiplication, but not under addition.
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