Darren Lee's answer to mint's Secondary 4 A Maths Singapore question.
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when you have 2 unknowns, you will need 2 equations and solve simultaneously
the keys is to find the 2 equations - once you know the tangent point, you can find the gradient at that point
hope this helps! :)
the keys is to find the 2 equations - once you know the tangent point, you can find the gradient at that point
hope this helps! :)
Date Posted:
5 years ago
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