Let I = (π, π) be the open interval and consider the R vector space Diff (I, R) = {f: I → R : ƒ is differentiable for all t € I} Consider the two subsets Even (I, R) = {fe Diff(I, R) : ƒ(t) = f(−t) for all t € I} Odd(I, R) = {f € Diff(I, R) : f(t) = −ƒ(−t) for all t e I} Prove that Even (I, R), and Odd(I, R) are subspaces (b) Prove that Diff (I, R) = Even (I, R) + Odd(I, R) (a)

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Let I = (π, π) be the open interval and consider the R vector space
Diff (I, R) = {f: I → R : ƒ is differentiable for all t € I}
Consider the two subsets
Even (I, R) = {fe Diff(I, R) : ƒ(t) = f(−t) for all t € I}
Odd(I, R) = {f € Diff(I, R) : f(t) = −ƒ(−t) for all t e I}
Prove that Even (I, R), and Odd(I, R) are subspaces
(b) Prove that Diff (I, R) = Even (I, R) + Odd(I, R)
(a)
Transcribed Image Text:Let I = (π, π) be the open interval and consider the R vector space Diff (I, R) = {f: I → R : ƒ is differentiable for all t € I} Consider the two subsets Even (I, R) = {fe Diff(I, R) : ƒ(t) = f(−t) for all t € I} Odd(I, R) = {f € Diff(I, R) : f(t) = −ƒ(−t) for all t e I} Prove that Even (I, R), and Odd(I, R) are subspaces (b) Prove that Diff (I, R) = Even (I, R) + Odd(I, R) (a)
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