Binary and hexadecimal expansion

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SUMMARY

The binary expansion of a positive integer can be derived directly from its hexadecimal expansion by converting each hexadecimal digit into a corresponding block of four binary digits. This method leverages the base-16 to base-2 conversion, where each hexadecimal digit represents a unique 4-bit binary sequence. For example, the hexadecimal digit 'A' translates to the binary sequence '1010'. Understanding this conversion process is essential for manipulating and interpreting numerical data across different bases.

PREREQUISITES
  • Understanding of binary and hexadecimal number systems
  • Familiarity with base conversion techniques
  • Knowledge of positional notation in number systems
  • Basic algebra for manipulating expressions
NEXT STEPS
  • Study binary and hexadecimal number conversions in detail
  • Practice converting hexadecimal numbers to binary using examples
  • Explore the implications of base conversions in computer science
  • Learn about data representation in digital systems
USEFUL FOR

Students studying computer science, mathematicians interested in number theory, and anyone working with digital data representation will benefit from this discussion.

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Homework Statement


Show that the binary expansion of a positive integer can be obtained form its hexadecimal expansion by translating each hexadecimal digit into a block of four binary digits.


Homework Equations





The Attempt at a Solution


I know that this is true but I have no idea how to show it. Any pointers?
 
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If you have number given as ##a_n 16^n + a_{n-1} 16^{n-1} + ... + a_0##, can you express it as binary number? This expression is unique, so once you find some way to represent the number you are done.
 

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