Lex Phua's answer to A's Junior College 2 H2 Maths Singapore question.
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To find Min/Max. Use Second Derivative
1. Find First derivative solve for X
2. Find Second derivative
3. Input X values into second derivative
4. Observe for positive or negative values
Local Max < 0
Local Min > 0
1. Find First derivative solve for X
2. Find Second derivative
3. Input X values into second derivative
4. Observe for positive or negative values
Local Max < 0
Local Min > 0
Date Posted:
3 years ago
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