Suppose I have sqrt (a^2 - a [delta] d). What do I do? Do I do like this: sqrt (a^2 - a [delta] d) = a - sqrt(a [delta] d)? Thanks.(adsbygoogle = window.adsbygoogle || []).push({});

PS: One more thing. How to write mathematics with latex?

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# Homework Help: Some maths problem

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