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The equation is an identity, meaning it holds true for all real numbers
except where
or
.
Solución

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Como
Bonus Knowledge
To solve the equation
, we begin by rewriting the terms in terms of sine and cosine.
Recall that:
Now, substituting these into the equation gives:
Simplifying the left side:
This reduces to:
Cross-multiplying gives:
Dividing both sides by
(assuming
) yields:
Rearranging gives us:
Factoring out
:
Assuming
, we can divide both sides by
:
Here, we can use the Pythagorean identity
to rewrite the equation:
This simplifies to:
Dividing both sides by
(assuming
), we find:
This results in:
The solutions for this equation are:
Thus, the final answer for the given equation is:

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