For Exercises 65–88, simplify the expressions by using the properties of rational exponents. Write the final answers using positive exponents only. ( See Example 5 .) ( 5 a 2 c − 1 / 2 d 1 / 2 ) 2
For Exercises 65–88, simplify the expressions by using the properties of rational exponents. Write the final answers using positive exponents only. ( See Example 5 .) ( 5 a 2 c − 1 / 2 d 1 / 2 ) 2
Solution Summary: The author calculates the simplified value of expression (5a2craisebox1ex-1!
For Exercises 65–88, simplify the expressions by using the properties of rational exponents. Write the final answers using positive exponents only. (See Example 5.)
(1) Let F be a field, show that the vector space F,NEZ* be a finite dimension.
(2) Let P2(x) be the vector space of polynomial of degree equal or less than two
and M={a+bx+cx²/a,b,cЄ R,a+b=c),show that whether Mis hyperspace or not.
(3) Let A and B be a subset of a vector space such that ACB, show that whether:
(a) if A is convex then B is convex or not. (b) if B is convex then A is convex or not.
(4) Let R be a field of real numbers and X=R, X is a vector space over R show that by
definition the norms/II.II, and II.112 on X are equivalent where
Ilxll₁ = max(lx,l, i=1,2,...,n) and llxll₂=(x²).
oper
(5) Let Ⓡ be a field of real numbers, Ⓡis a normed space under usual operations and
norm, let E=(2,5,8), find int(E), b(E) and D(E).
(6) Write the definition of bounded linear function between two normed spaces and
write with prove the relation between continuous and bounded linear function
between two normed spaces.
ind
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Q₁/(a) Let R be a field of real numbers and X-P(x)=(a+bx+cx²+dx/ a,b,c,dER},X is
a vector space over R, show that is finite dimension.
(b) Let be a bijective linear function from a finite dimension vector ✓ into
a space Yand Sbe a basis for X, show that whether f(S) basis for or not.
(c) Let be a vector space over a field F and A,B)affine subsets of X,show that
whether aAn BB, aAU BB be affine subsets of X or not, a,ẞ EF.
(12
Jal (answer only two) (6) Let M be a non-empty subset of a vector space X and tEX,
show that M is a hyperspace of X iff t+M is a hyperplane of X and tЄt+M.
(b) State Jahn-Banach theorem and write with prove an application of Hahn-
(b) Let A and B be two subset of a linear space X such that ACB, show that
whether if A is affine set then B affine or need not and if B affine set then A affine set
or need not.
Qz/antonly be
a-Show that every hyperspace of a vecor space X is hyperplane but the convers
need not to be true.
b- Let M be a finite dimension subspace of a Banach space X show that M is closed set.
c-Show that every two norms on finite dimension vector space are equivant (1)
Q/answer only two
a-Write the definition of bounded set in: a normed space and write with prove an
equivalent statement to a definition.
b- Let f be a function from a normed space X into a normed space Y, show that f
continuous iff f is bounded.
c-Show that every finite dimension normed space is a Banach.
Q/a- Let A and B two open sets in a normed space X, show that by definition
AnB and AUB are open sets.
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