Arithmetic and Algebra
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Cover Sheet Subject Questions and Solution (Mathematics) Topic Arithmetic and Algebra Source Stroud, K.A., 1995. Engineering Mathematics. 4th ed. London: Palgrave Macmillan. Author (prepared by) Shefiu S. Zakariyah, PhD Edited / Supervised by Shefiu S. Zakariyah, PhD The original manuscript has been carefully re-written by Abdullahi Mohamed Said. The author has exerted all effort to ensure an accurate presentation of questions and their associated solutions in this note. The author does not assume and hereby disclaims any liability to any party for any loss, damage, or disruption caused by errors or omissions, either accidently or otherwise in the course of preparing this book. © Shefiu S. Zakariyah 2015 Email: [email protected]
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Transcript of Arithmetic and Algebra
Cover Sheet
Subject Questions and Solution (Mathematics)
Topic Arithmetic and Algebra
Source Stroud, K.A., 1995. Engineering Mathematics.
4th ed. London: Palgrave Macmillan.
Author (prepared by) Shefiu S. Zakariyah, PhD
Edited / Supervised by Shefiu S. Zakariyah, PhD
The original manuscript has been carefully re-written by Abdullahi Mohamed Said. The
author has exerted all effort to ensure an accurate presentation of questions and their
associated solutions in this note. The author does not assume and hereby disclaims any
liability to any party for any loss, damage, or disruption caused by errors or omissions,
either accidently or otherwise in the course of preparing this book.
© Shefiu S. Zakariyah 2015
Email: [email protected]
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ARITHMETIC AND ALGEBRA
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s.f. = significant figures
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It is preferred to leave the intermediate answer(s) above the required significant figures.
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Steps 1. Cross multiply 2. Open the brackets 3. Collect the like terms 4. Factorise 5. Both sides by (f+s)
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or (2x+3)2
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Consider this as a difference of two squares and apply the standard formula a2 - b2=(a+b)(a-b)
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8.755
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