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Mathematics, 17.10.2021 03:10 lia3865

If x=t^2-1 , y =t^4-2t^3 then when t=1 what's d^2y/dx^2? I've been struggling on this one. According to Barron's, the answer should be 1/2. But I arrive to 0 every time.

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If then when t=1 what's d^2y/dx^2? I've been struggling on this one. According to Barron's, the a...
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