SKU: 24044605898

Must Know High School Pre-Calculus

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Description

Must Know High School Pre-CalculusThe new Must Know series is like a lightning bolt to the brain Every school subject has must know ideas, or essential concepts, that lie behind it. This book will use that fact to help you learn in a unique way. Most study guides start a chapter with a set of goals, often leaving the starting point unclear. In Must Know High School Pre calculus, however, each chapter will immediately introduce you to the must know idea, or ideas, that lie behind the

The new Must Know series is like a lightning bolt to the brain

Every school subject has must know ideas, or essential concepts, that lie behind it. This book will use that fact to help you learn in a unique way. Most study guides start a chapter with a set of goals, often leaving the starting point unclear. In Must Know High School Pre-calculus, however, each chapter will immediately introduce you to the must know idea, or ideas, that lie behind the new pre-calculus topic. As you learn these must know ideas, the book will show you how to apply that knowledge to solving pre-calculus problems.

Focused on the essential concepts of pre-calculus subjects, this accessible guide will help you develop a solid understanding of the subject quickly and painlessly. Clear explanations are accompanied by numerous examples and followed with more challenging aspects of pre-calculus. Practical exercises close each chapter and will instill you with confidence in your growing pre-calculus skills.

Must Know High School Pre-calculus features:

- Each chapter begins with the must know ideas behind the new topic
- Extensive examples illustrate these must know ideas
- Students learn how to apply this new knowledge to problem solving
- 250 practical review questions instill confidence
- IRL (In Real Life) sidebars present real-life examples of the subject at work in culture, science, and history
- Special BTW (By the Way) sidebars provide study tips, exceptions to the rule, and issues students should pay extra attention to
- Bonus app includes 100 flashcards to reinforce what students have learned



Binding Type: Paperback
Publisher: McGraw-Hill Education
Published: 01/03/2020
ISBN: 9781260458152
Pages: 464
Weight: 1.45lbs
Size: 9.10h x 7.30w x 1.10d
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SKU: 24044605898

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Nora
Waukegan, US
★★★★★ 5
Great cooling pillow, and cat-approved!
Color: Purple, Size: Standard, Color: Purple, Size: Standard
I've been using this EGOHOME cooling gel memory foam pillow for a few weeks now, and the cooling feature is definitely the standout for me. The reversible cooling cover really does what it promises — it feels noticeably cool to the touch, especially when the AC is on, and makes a big difference on warmer nights. It helps create that fresh, cool sleep surface that makes it easier to relax and fall asleep. Beyond the cooling comfort, the memory foam strikes a great balance between soft and supportive. It keeps my neck aligned whether I sleep on my side or back, and I’ve been waking up feeling more rested with much less neck stiffness than before. The removable, washable cover is also a practical plus. One small note: the cooling effect does gradually fade after an hour or two without AC, so pairing it with a fan or air conditioning helps maintain that cooler feel longer. And perhaps the highest endorsement I can offer: my cat Duoduo claimed it immediately. She’s been loafing on it with a look of complete ownership ever since — I’d say that’s the ultimate comfort test passed.
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Reviewed in the United States on May 27, 2026
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Ram mohan
Fort Morgan, US
★★★★★ 5
Cool, Supportive, and Very Comfortable Pillow
Color: Blue, Size: Standard, Color: Blue, Size: Standard
I really liked this pillow from the first night. It feels soft but still gives very good support to the head and neck, so it feels comfortable in different sleeping positions. I also liked the cooling side, which feels nice especially at night when the room gets warm. The pillow has a good shape, feels well made, and the cover is easy to remove and wash, which is very helpful for regular use. Overall, I feel this pillow is worth buying if you want comfort and support together. It gives a nice balance, not too hard and not too soft, and I woke up feeling more relaxed. The cooling feature, washable cover, and memory foam support make it very practical for everyday use. I am happy with this purchase and would definitely recommend it.
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Reviewed in the United States on May 12, 2026
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cantonnow
Chelsea, US
★★★★★ 3
To think and the best cooling
Color: Blue, Size: Standard
The pillow is a little to thin..not as thick as it should be. The cooling feels good for a short period then looses it cooling for me.
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Reviewed in the United States on May 30, 2026
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Alexandre Janner
Lowell, US
★★★★★ 5
Great pillow
Color: Blue, Size: Standard, Color: Blue, Size: Standard
Great pillow very comfortable and supportive I was pleasantly surprised by this pillow. It has the perfect balance between softness and support, keeping my neck well aligned throughout the night. The material feels high quality and it doesn’t get too hot, which is a big plus. After a few nights, I noticed better sleep and less neck discomfort. Highly recommend!!!!
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Reviewed in the United States on April 7, 2026
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Akeem
Port Orchard, US
★★★★★ 5
Comfortable and stays cool
Color: White-cooling Basic, Size: Queen(Pack of 1)
Great pillow. When i opened it, i noticed a strange smell, i assumed its the smell of whatever they use to make the pillow stay cool. You have to fluff it for a good amount of time to make sure the cooling agent spreads well in the foam. Is what i assumed atleast. Its a perfect amount of softness for me. Pair it with some bamboo pillow cases and you got a good night of sleep
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Reviewed in the United States on May 9, 2026

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