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Question Number 92182 by mhmd last updated on 05/May/20

Commented by mr W last updated on 05/May/20

why repeat Q92114?

$${why}\:{repeat}\:{Q}\mathrm{92114}? \\ $$

Commented by mhmd last updated on 05/May/20

pleas sir i want exactly ∫(dy/(y^3 −c^3 ))=−x   in this solution ?

$${pleas}\:{sir}\:{i}\:{want}\:{exactly}\:\int\frac{{dy}}{{y}^{\mathrm{3}} −{c}^{\mathrm{3}} }=−{x}\: \\ $$$${in}\:{this}\:{solution}\:? \\ $$

Commented by mr W last updated on 05/May/20

(1/(y^3 −c^3 ))=(A/(y−c))+((By+C)/(y^2 +cy+c^2 ))  then you can apply known formulae.

$$\frac{\mathrm{1}}{{y}^{\mathrm{3}} −{c}^{\mathrm{3}} }=\frac{{A}}{{y}−{c}}+\frac{{By}+{C}}{{y}^{\mathrm{2}} +{cy}+{c}^{\mathrm{2}} } \\ $$$${then}\:{you}\:{can}\:{apply}\:{known}\:{formulae}. \\ $$

Commented by mhmd last updated on 05/May/20

thank you sir

$${thank}\:{you}\:{sir} \\ $$

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