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Using Second Derivatives

Ex 9I Q7

i)
A) Negative
B) Zero
C) Positive
D) Zero
ii)
A) Positive
B) Positive
C) Negative
D) Zero

Given that \(y=x(3x-1)^5\)
  • \(\frac{dy}{dx}\to 15x(3x-1)^4+(3x-1)^5\)
  • \(\frac{d^2y}{dx^2}\to 180x(3x-1)^3+30(3x-1)^4\)
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