Original
To start, note that the Inverse Function Theorem assures us that this
derivative actually exists.
Recall
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means that {{MATH_28}} and {{MATH_29}}.
Implicitly
differentiating with respect to {{MATH_30}} we obtain that
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Recall the trig identity: {{MATH_32}}.{{CMD_33}}
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Recall from above: {{MATH_35}}.{{CMD_36}}
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