Question

Suppose V is a finite dimensional inner product space, and dim V = n. If is...

Suppose V is a finite dimensional inner product space, and dim V = n.

If W = { 1, ... , Um} is an orthogonal subset of V, prove that

a. W can be extended to an orthogonal basis \left \{ v_{1}, ... \ ,v_{m},v_{m+1},...,v_{n}\right \} for V.

b. \left \{ v_{m+1},...,v_{n}\right \} is an orthogonal basis for W^{^{\perp}}

c. dimV=dimW+dimW^{^{\perp}}

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