00:01
Hello, welcome to this lesson.
00:02
In this lesson, we would answer the question, can a polynomial of even degree defined over a set of real numbers have an inverse.
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So, let's pick an example.
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So, for example, x squared minus 1.
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Let's go through the normal process of finding the invest.
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The first one is that we will let y equals to x squared minus 1.
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Then we would exchange the positions of x and y.
00:39
We have x is equal to y squared minus 1.
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Here we would add one to both sides.
00:55
So we have x plus 1 equals to y squared...