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From: been thawn
y=cos(u) where u=sqrt(x)
dy/du=-sin(u) du/dx
du/dx=d[(x)^(1/2)]/dx=(1/2)*x*(-1/2)
(dy/du)(du/dx)=dy/dx=-sin(sqrt(x))*(1/2)*x*(-1/2)
hmm something of the sort, what did i do wrong here... :thinking:
dy/du=-sin(u) du/dx
du/dx=d[(x)^(1/2)]/dx=(1/2)*x*(-1/2)
(dy/du)(du/dx)=dy/dx=-sin(sqrt(x))*(1/2)*x*(-1/2)
hmm something of the sort, what did i do wrong here... :thinking:
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