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Maths chevron_right Malaysia

I need to use formula above to differentiate the function at a given point. However, I do not know how to continue from there.

Date Posted: 5 months ago
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Eric Nicholas K
Eric Nicholas K's answer
2997 answers (Tutor Details)
We need to find a way to eliminate x - 0.5 from the denominator so that we do not have to face a denominator of zero.

This can only be done by eliminating x - 0.5 (or their constant multiples) from both the numerator and denominator. Observe how factorising the numerator allows us to achieve a 2x - 1 in the numerator.
5 months ago
thanks Eric! i hv learnt something new today