If x=t^3, y=2t^2 for t>0, then what does d^2y/dx^2 equal?
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This is what the question is asking. Step 1. Express in terms of t. Step 2. find , i.e. the derivative of step 1 with respect to t. Step 3. divide by .
So is this what I should do? Step 1: Step 2: Step 3: so the answer would be . Is that right?
Originally Posted by chaddy So is this what I should do? Step 1: No, this is incorrect, you cannot treat t as a constant when you know it is a variable Step 2: Step 3: so the answer would be . Is that right? first find and you should get and then you use giving want to finish this off ?
Okay, so Step 2: Step 3: so the answer would be . Is that right?
Yeah that looks good to me.
Originally Posted by chaddy Okay, so Step 2: Step 3: so the answer would be . Is that right? By the way .... since y = 2t^2 you can express the result as a function of y ......
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