precalculus homework online: Pre-Calculus For Dummies

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It seems the authors break their own rule in the first chapter on PEMDAS. This is a simple problem, but they wrote it out wrong in answers where they perform addition and subtraction first before multiplication. I think it should be the other way around. i.e. Ex 4 - Ch 1. abs(5 * 1 - 4 + 6) = 7 not 9. Every monkey knows multiplication is performed first. I'm not sure what the authors were thinking starting with subtraction first???I'm kinda blushing here...I punched this into my TI-89 Titanium and I get the same answer as I had come up with for the nominator. Calculators follow PEMDAS rule, so am I missing something here? Please, put an errata up people and have a forum, otherwise your books are useless. This is a refresher for me as I'm going in for calculus next fall. Mi! stakes as such would flunk a student in those courses...

Pre-Calculus For Dummies Features

ISBN13: 9780470169841
Condition: USED - VERY GOOD
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Price : $19.99
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Pre-Calculus For Dummies Overviews

Getting ready for calculus but still feel a bit confused? Have no fear. Pre-Calculus For Dummies is an unintimidating, hands-on guide that walks you through all the essential topics, from absolute value and quadratic equations to logarithm! s and exponential functions to trig identities and matrix oper! ations.

With the help of this clear, easy-to-use resource, you’ll soon get a handle on all of the concepts — not just the number crunching — and understand how to perform all pre-calc tasks, from graphing to tackling proofs. You’ll also get a new appreciation for how these concepts are used in the real world, and find out that getting a decent grade in precalc isn’t as impossible as you thought. Discover how to:

Apply the major theorems and formulas
Understand quadratic, square-root, absolute value, cubic, and cube-root functions
Graph trig functions like a pro
Flip-flop with inverse functions
Find trig values on the unit circle
Work with trig identities and advanced identities
Tackle analytic geometry
Solve oblique triangles with the laws of sines and cosines
Use polar coordinates to express points on a plane
Identify function limits and continuity !
Place vectors on a coordinate plane.
Rotate and shift conic section forms
Solve systems with mingling and matrices

If “the fun and easy way to learn pre-calc” seems like an oxymoron to you, order Pre-Calculus For Dummies today, and get ready to be surprised!

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Customer Review

great help! - R. Bennett - Los Angeles, CA USA
This book is well-written. It explains the most complex lessons, from class, and "dumbs it down" for those of us who need that extra help. Pre-Cal for Dummies has helped me in many cases.

Terrible book. - Amanda Jensen -
This is one of the worst "dummies" books I've ever read. It was condescending, dull, and poorly written. If you're! looking for pre-calculus help, look elsewhere.

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