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How do dental cavities form?
dental cavity is formed when two main factors contribute too become a toothe decay bacteria and a diet high in sujar also starch. these bacteria combine with food and saliva to inform a sticky substance called plaque.when this acure it will start to become hard and in few days you will see it start to process in turing into tartar or calulus,causing of this leads to holes and cavitives :)
What is limit in calulus?
Some functions are not defined for selected values of their argument. But, as you calculate the value of the function nearer and nearer to these selected values, you get a consistent result - whichever side you approach the critical value from.For example, sin(x)/x [where the angle x is measured in radians] is not defined for x = 0 since it would be 0/0 which is undefined. However, as x approaches 0, from the negative or positive side, the value of the function gets closer and closer to 1. In this case, the limit of sin(x)/x, as x approaches 0, is said to be 1.
