An n-dimensional cube has how many corners? How many edges? How many (n -1)-dimensional faces? The cube in Rn whose edges are the rows of 2I has volume __ . A hypercube computer has parallel processors at the corners withconnections along the edges.

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Chapter2: Second-order Linear Odes
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An n-dimensional cube has how many corners? How many edges? How many (n -1)-dimensional faces? The cube in Rn whose edges are the rows of 2I has volume __ . A hypercube computer has parallel processors at the corners withconnections along the edges.

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Step 1

Given: n-dimensional cube.
To find: a) Number of corners in n-dimensional cube.
              b) Number of edges in n-dimensional cube.
              c) Number of n-1-dimensional faces.
              d) Volume of cube in Rn whose edges are the rows of 2I.

Step 2

a) We know that the two-dimensional cube is a square and it has  corners.
Three-dimensional cube is the regular cube and it has  corners.
Using the same logic, we can conclude that -
The n-dimensional cube has 2n corners.

b) We know that the square has 2·22-1=2×2=4 edges, while regular cube has 3·23-1=3×22=12 edges. 
Using the same logic, we can conclude that -
The n-dimensional cube has n·2n-1 edges.

c) Since the square has 2·2=4 one-dimensional faces (segments) and the regular cube has 2·3=6 two-dimensional faces (squares), it follows that-
The n-dimensional cube has 2n (n-1)-dimensional faces.

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