Define the binary operator  ⋆⋆ by:     a⋆b=a+8ba⋆b=a+8b  Find each of the following:  3⋆4=3⋆4=    9⋆9=9⋆9=    4⋆3=4⋆3=    z⋆c=z⋆c=

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Define the binary operator  ⋆⋆ by:

    a⋆b=a+8ba⋆b=a+8b 

Find each of the following:

  1.  3⋆4=3⋆4=  
  2.  9⋆9=9⋆9=  
  3.  4⋆3=4⋆3=  
  4.  z⋆c=z⋆c=     
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