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Inner Product Spaces

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Multiple Choice

In an inner product space, the inner product of two vectors (x) and (y) is denoted by:

  1. $\langle x, y \rangle$
  2. $\lVert x \rVert \cdot \lVert y \rVert$
  3. $\lVert x - y \rVert$
  4. $\lVert x + y \rVert$
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