The set of all polynomials of degree 7 under the standard addition and scalar multiplication operations is not a vector space because * We can find two polynomials P(x) and Q(x) for which P(x)-Q(x)#Q(x)-P(x) We can find a polynomial P(x) such that (c+d)P(x)#cP(x)+dP(x). It is not closed under addition. We can find a polynomial P(x) for which 1-P(x)#P(x)
The set of all polynomials of degree 7 under the standard addition and scalar multiplication operations is not a vector space because * We can find two polynomials P(x) and Q(x) for which P(x)-Q(x)#Q(x)-P(x) We can find a polynomial P(x) such that (c+d)P(x)#cP(x)+dP(x). It is not closed under addition. We can find a polynomial P(x) for which 1-P(x)#P(x)
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.1: Vector Spaces And Subspaces
Problem 18EQ
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