Prove that:

Now, say that:

So…

Prove that:

Now, say that:

So…

Prove that:

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PROOF:

In this video, Patrick JMT demonstrated how to do logarithmic differentiation.

Now I’m going to show you how I’d solve the same problem…

Firstly we must know that:

Now:

Prove that:

Say that:

And that:

Therefore:

Now:

Prove that:

Say that:

And that:

Therefore:

Prove that:

Say that:

Therefore:

So: