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mmm4444bot replied to the thread Features in XenForo.💡 Here's a tip. When you type a smiley name, you don't need to type the entire name. Typing a colon followed by the first few letters... -
mmm4444bot replied to the thread Features in XenForo.Some of the smiley names have changed. For example, I often type :cool: for 😎 but the new name is :sunglasses: Typing :cool: now...
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mmm4444bot replied to the thread Guidelines Summary.͏This post is for thread-bumps only. \; Please scroll up.
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MarkFL replied to the thread Solving inequality Please help.Using W|A, I find the one real root is approximately: x\approx1.74601665058591 Now, if we define: f(x)=x^4-2x^3-3x+9 We find... -
Qquinn replied to the thread Hydrostatic Force Problem (Calc 2).Thank you for the explanation.
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RRC1 replied to the thread Solving inequality Please help.If a max and min are also required, setting first derivative to zero will yield maxima or minima.
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MarkFL replied to the thread Hydrostatic Force Problem (Calc 2).No, what we have now is: dF=\rho gx\sqrt{w^2-(2(x-(d-h)))^2}\,dx where \(x_1\le x\le x_2\). Hence: F=\rho...
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RRC1 replied to the thread Solving inequality Please help.Normally, one would try to factor or find the 4 roots of the numerator to see if there are additional critical points, in addition to...
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Can you try doing this? :) -
Qquinn replied to the thread Hydrostatic Force Problem (Calc 2).Yes, so now we come to integrate (ρ ⋅ density ⋅ g ⋅ ℓ)dx over 0≤x≤36 correct?
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MarkFL replied to the thread Solving inequality Please help.We are finding the root of the derivative of the quartic, which is a cubic. :)
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MarkFL replied to the thread Hydrostatic Force Problem (Calc 2).The depth at the top of the gate (in terms of the given variables) is: x_1=d-h-\frac{w}{2} And the depth at the bottom of the gate is...
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RRC1 replied to the thread Solving inequality Please help.There cannot be only one real root in an quartic equation. It appears to me that there are zero real roots and 4 imaginary roots.
