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You don't. If you think a method may work then you should attempt that method. It does not always have to be substitution.View attachment 39319
how do u find the substituion if the question did not give you one
So it turns out the differential equation is a bernoulli differential equation. From there you can figure out the substitution required.so u would jsut trial and error for this q?
but thats not in syllabus lmao, this is for a school testIt uses integrating factor method. Here is more on that: https://en.wikipedia.org/wiki/Integrating_factor
It is not that hard to quickly learn. You have asked how to solve it without substitutionbut thats not in syllabus lmao, this is for a school test
no i meant "HOW to find the substituion", not how to solve it without substitution bruhhhIt is not that hard to quickly learn. You have asked how to solve it without substitution
I will leave you to itno i meant "HOW to find the substituion", not how to solve it without substitution bruhhh
i.e. they give you the same euqation. THEN the question goes "by finding a suitable substituion, solve ..."
in ext 1, they always give the substitution if one is required for the questionView attachment 39319
how do u find the substituion if the question did not give you one
ok tyin ext 1, they always give the substitution if one is required for the question