Question

proces writing :- flow to propare book -list hints:- specimen copies received from publishers
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Answer 1

In mathematics, the irrational numbers are all the real numbers which are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers. ... For example, the decimal representation of π starts with 3.14159, but no finite number of digits can represent π exactly, nor does it repeat.

Answer 2

Gravity is a physical connection between space and matter that is precisely described by Einstein's 1915 geometric theory of gravity known as general relativity. Put simply, that theory says, "Space acts on matter, telling it how to move. In turn, matter reacts back on space, telling it how to curve."