class limits is where the numbers are fall.from begining to end.a class interval is when a fixed no. are decided for eg.0-5,5-10,10-15,15-20 are inclusive class intervals.
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Different countries in Europe have different laws governing road use. Furthermore, within each country, there are different laws for different types of roads. Also, the speed limits on some roads, in some countries are also adjusted according to the weather (lower speed limits in rain, for example).
Definite integrals are definite because the limits of integration are prescribed. It is also the area enclosed by the curve and the ordinates corresponding to the two limits of integration. Antiderivatives are inverse functios of derivatives. If the limits of the integral are dropped then the integration gives antiderivative. Example Definite integral of x with respect to x between the value of x squared divided by 2 between the limits 0 and 1 is 1/2. Antiderivative of x is x squared divided by two.
Limits give upper and lower bounds for integration. One simple example is in finding an enclosed area. The upper and lower limits form vertical lines which enclose an area between the function and the x-axis and then integration from the lower limit (smaller x boundary) to the upper limit (larger x boundary).
If it was for example: 50,000 meters squared ± 50. That means that the land could be between 49,950 and 50,050. So the ± is just telling you the limits.
Some functions put a limit on the range; for example. y=x2 produces only nonnegative numbers. The sine and cosine functions limit the range between 1 and -1.