(adsbygoogle = window.adsbygoogle || []).push({}); [SOLVED] Interpretation of Trig Expression

1. The problem statement, all variables and given/known data

Question: Sin xy = y, find dy/dx. This was given as Homework.

I did the question as Sin (xy) = y, whereas my teacher took the question as (Sin x)y = y and made a joke out of me in the class for thinking otherwise. All I want to know is which way should the question be interpreted.

2. Relevant equations

Sin xy = y

3. The attempt at a solution

Taking my interpretation of Sin xy = y as Sin (xy) = y, the differentiated equation I get is:

dy/dx = (-y Cos xy)/(x Cos xy - 1)

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# Homework Help: Interpretation of Trig Expression

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