Could you make proof of "a > b" ?

See explanation

Step-by-step explanation:

Consider the first triangle:

1. From the right triangle with acute angle

2. From the right triangle with acute angle

Thus,

Consider the second triangle:

1. From the right triangle with acute angle

2. From the right triangle with acute angle

Thus,

Now, since we have and

If

and

then

This means and  

Hence,

Now,

and

so

Note that this solution is true only for acute angles

step-by-step explanation:

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