Can anyone help me please it is hard to understand it?

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mhwalters

27.08.2022

Mathematics

$\frac{1-cos^2x}{1+cosx}$

Step-by-step explanation:

We are given the expression

$\frac{sin^2x}{1+cosx}$

We can use the Pythagorean identity of sin^2x+cos^2x=1 when solved for sin^2x=1-cos^2x

Now we can substitute in our identity for sin^2x

$\frac{1-cos^2x}{1+cosx}$

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