Le Vinh Trong's answer to care beAr's Secondary 4 A Maths Singapore question.

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Le Vinh Trong
Le Vinh Trong's answer
4 answers (Tutor Details)
1st
Hi for this qns its easier for you to change the 1/(4-sqrt(16-x^2))^2 into 4-sqrt(16-x^2))^(-2)