Hi Fellows:(adsbygoogle = window.adsbygoogle || []).push({});

If anyone has access to a copy of 'Differential Equations with Boundary-Value Problems (THIRD edition)' by Dennis G. Zill and Michael R. Cullen, I just need you to paste here or dictate to me on phone the following problem equations:

1. Problem no. 12 of chapter 4 review exercise.

2. Problem no. 23 of chapter 4 review exercise.

I will be very, very thankful to you.

Best Regards.

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# Need a quick favor if anyone has Differential Equations 3rd Ed by Zill

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