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Icon Archive - Search 502,979 free icons, desktop icons, download icons, social icons, xp icons, vista icons Equations solver - GetEasySolution.com Free Trigonometry Practice Tests Our completely free Trigonometry practice tests are the perfect way to brush up your skills. Take one of our many Trigonometry practice tests for a run-through of commonly asked questions. You will receive incredibly detailed scoring results at the end of your Trigonometry practice test to help you identify your strengths and weaknesses. Pick one of our Trigonometry practice tests now and begin! High school Trigonometry classes introduce students to various trigonometric identities, properties, and functions in detail. Like Pre-Algebra, Algebra I, and Algebra II classes, Trigonometry classes focus on functions and graphs. Trigonometric identities are also discussed in Trigonometry classes; students learn about the sum and product identities, as well as identities of inverse operations, squared trigonometric functions, halved angles, and doubled angles. Another major part of Trigonometry is learning to analyze specific kinds of special triangles.
Videos and Worksheets | Corbettmaths 2D shapes: names Video 1 Practice Questions Textbook Exercise 2D shapes: quadrilaterals Video 2 Practice Questions Textbook Exercise 3D shapes: names Video 3 Practice Questions Textbook Exercise 3D shapes: nets Video 4 Practice Questions Textbook Exercise 3D shapes: vertices, edges, faces Video 5 Practice Questions Textbook Exercise Addition: column method Video 6 Practice Questions Textbook Exercise Algebra: changing the subject Video 7 Practice Questions Textbook Exercise Algebra: changing the subject advanced Video 8 Practice Questions Textbook Exercise Algebra: collecting like terms Video 9 Practice Questions Textbook Exercise Algebra: completing the square Video 10 Practice Questions Textbook Exercise Algebra: dividing terms Video 11 Practice Questions Textbook Exercise Algebra: equation of a circle Video 12 Practice Questions Textbook Exercise Algebra: expanding brackets Video 13 Practice Questions Textbook Exercise Algebra: expanding two brackets Video 14 Practice Questions Textbook Exercise
100 Incredibly Useful and Interesting Web Sites Even as the Web has become more entertaining--and certainly better looking--over the past 15 years, it has also become much more useful and practical, as the 100 sites in this feature will demonstrate. I've organized the sites in the list by the type of task they help you with. It is not a ranking; in each category I recommend sites that specialize in a different area than the others. I've also mixed in a smattering of sites that you might not use every day, but that provide ready answers to specific questions like "How can I learn to rumba?" or "Who should I vote for?" Most Useful Web Sites by Category 9 Sites to Help You Survive the Recession A growing number of good Web sites, like Prosper and Bankrate, are popping up, offering you cool tools to help you manage and conserve your money. 8 Great How-to Web Sites Because of sites like Yahoo Answers and Instructables, the Web has become the first stop for people trying to fix something, build something, or learn a new skill. Extras:
Basic Differentiation Tutorial | Vivax Solutions Differentiation The process of finding the gradient or slope of a function is the differentiation. We used to find the gradient of a straight line, just by dividing the change in 'y' by change in 'x', in a certain range of values. However, when it comes to a curve, it is not easy to find the gradient or slope as the very thing we want to measure, keeps changing from point to point. we have to draw tangents at all those points and then find the gradients individually. If we stick to this method we will have to draw hundreds, if not thousands, of tangents to find the gradient at various points of the curve; enough work to put off someone doing maths for decades! Good news is that there is a method that comes to our rescue. If y = xn then dy/dx = nxn-1 That means, if a curve is in the form of y = xn , its gradient at any point is given by nxn-1 . E.g. y = x2 - 2x So, dy/dx = 2x -2 Now we can find the gradient at any point on the curve by just putting the value of 'x' in it. E.g.1 E.g.2 E.g.3 E.g.4
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