) Suppose L : V → W is a linear transformation such that the kernel of L is trivial, that is, ker(L) = {0}. Prove that L is one-to-one. (use the definitions) Hint: Start with L(v1) − L(v2) = 0 and use linearity of L. (b) Prove the converse of (a), that is, suppose L : V → W is a one-to-one linear transformation and prove that ker(L) = {0}. (use the definitions) Hint: Start with v ∈ ker(L) and use the

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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(a) Suppose L : V → W is a linear transformation such that the kernel of L is trivial, that is,
ker(L) = {0}. Prove that L is one-to-one. (use the definitions)
Hint: Start with L(v1) − L(v2) = 0 and use linearity of L.

(b) Prove the converse of (a), that is, suppose L : V → W is a one-to-one linear transformation
and prove that ker(L) = {0}. (use the definitions)
Hint: Start with v ∈ ker(L) and use the definition of one-to-one to show that v = 0.

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