1.Решите методом алгебраического сложения:
а)
{x+y=2
{x-y=3

б)
{2x-3y=1
{y-4x=2

г)
{ y:x(дробь) =  2:3  (дробь)

{4x-5y=8  

 

переведите, пожалуйста, текст!

LCD monitors started outselling CRT monitors in 2005. Their many advantages over the conventional CRT’s include smaller size, lower weight, reduced power consumption, lower heat and radiation emission. Due to ease of fabrication, manufacturers are able to build them in an increasingly large number of sizes and form factors. Moreover, favorable economies of scale are driving there costs lower and lower with every passing month.

LCD monitors have become more popular as compared with CRT monitors not only due to their space-saving advantage, but also because they typically consume 65% less power and emit little of it as heat or radiation. Their prices have been spiraling downwards for a while now. All these factors have made CRT’s extinct in all but the most high-end of the high-end environments where precise reproduction of colors is essential.

LCD monitors come in numerous shapes and sizes. Height-to-width ratio of 3:4 is dominating these days, but those with 9:16 ratios are gaining fast. These wider displays make the best use of the screen in case you want to watch DVD on your computer or would like to display two pages at a time while word-processing. Business folks like them as they can see more columns of their spreadsheets on these wider displays.

The size of the monitor is specified in terms of the diagonal measure of the display area. 15” diagonal displays were popular until recently, then 17” ones became cost-effective, and now 19” monitors are selling rapidly. Their popularity is, generally, a measure of the cost: the costs are coming down fast due to the increasing efficiency of the manufacturing process, and will continue to do so for the foreseeable future. Here is a good advice on which one to buy: spend around $300 on a monitor.

The maximum resolution of the display increases with diagonal size. Most 19” displays (with a 3:4 height-to-width ratio) now support a resolution of 1,280x1,024. Try to find a monitor having a resolution at least that much.

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помогите плиз решите уравнение √5-2X=3