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secondary 4 | A Maths
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Sonia
Sonia

secondary 4 chevron_right A Maths chevron_right Singapore

Please help with these.. I don’t understand anything ):

Date Posted: 6 months ago
Views: 26

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Eric Nicholas K
Eric Nicholas K's answer
3655 answers (Tutor Details)
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Eric Nicholas K
Eric Nicholas K's answer
3655 answers (Tutor Details)
The chain rule is again to be used here. The first chain is the large bracket attached to the ln, because otherwise you would just be differentiating ln x, but instead it’s the ln of something else.

We can treat the derivative of the term in the large brackets as a separate bracket. There will be a chain rule element involved in differentiating the (x2 + 1)^0.5; the chain this time is (x^2 + 1), because we are otherwise simply differentiating x^0.5 easily.
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Eric Nicholas K
Eric Nicholas K's answer
3655 answers (Tutor Details)
Where possible, we split the ln into different ln using the rules of logarithms. This facilitates easier differentiation.
Sonia
Sonia
6 months ago
Thank You so much for your help.. I really appreicate it ....