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secondary 4 | A Maths
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dy/dx is correct. and dy/dx=1/4 how do i solve for x?
Date Posted: 7 years ago
Views: 471
Shift x to the right side. Square both sides. Expand the right side. Shift everything back to the left. You should now get a cubic equation. Solve using the standard method (guess root, factorise etc).
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done
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Technique: we do not know how to solve equations in the form of x + x^(3/2) = 2. So we manipulate it into sth we are familiar with: the cubic equation!
You should find it a breeze from there on, if you are familiar with solving cubic equations in general:)
You should find it a breeze from there on, if you are familiar with solving cubic equations in general:)
Date Posted:
7 years ago
thank you!
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