3 years ago

Can anybody help? i’m super confused

1 answer:

6 0

Answer: So i think what you want is for the first one you want the crocadile mouths pointing to the nine, and the same for the second, it is kinda confusing pic

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postnew [5]

The word you're looking for is "differentiate", not "derive".

$\dfrac{\mathrm d}{\mathrm dw}\ln(\cos(w-1))=\dfrac{\frac{\mathrm d}{\mathrm dw}\cos(w-1)}{\cos(w-1)}=\dfrac{-\sin(w-1)\frac{\mathrm d}{\mathrm dw}(w-1)}{\cos(w-1)}=-\dfrac{\sin(w-1)}{\cos(w-1)}=-\tan(w-1)$