Chap 6 Error Analysis Homework 2 Ex 6.2 Q2(e)

Go through the working and attempt to identify where the error is.

7 comments:

  1. There is a mistake at Line 2.
    At Line 2, RHS, y - 48 should be 2y - 96. Because we must multiply at everything by 12 as it is the LCM of the three denominators - 3, 4, 6.

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  2. There is a mistake at line 2 . 48 should be changed to 96 as the common denominator is 12.

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  3. There is a mistake from line 1 to 2, the error is in 12(y/6+-8)=y-48 it should be 12(y/6+-8)=2y-96 because both sides must be multiplied by the same amount

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  4. In Line 2, the LHS cannot be cross multiplied if the sign is and addition sign. He should change the denominators all to 12 first.

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  5. In line 2, y - 48 should be 2y - 96.

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  6. In line 2, y-48 should have been 2y-96 as he cross multiplied the LHS

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