20%29%5E%7B%5Cfrac%7B-1%7D%7B2%7D%20%7D%20%7D%7B1-x%5E%7B2%7D%20%7D" id="TexFormula1" title="\frac{(1-x^{2})^{\frac{1}{2}} -x^{2} (1-x^{2} )^{\frac{-1}{2} } }{1-x^{2} }" alt="\frac{(1-x^{2})^{\frac{1}{2}} -x^{2} (1-x^{2} )^{\frac{-1}{2} } }{1-x^{2} }" align="absmiddle" class="latex-formula">
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1 answer:
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You're looking for an inequality of the form , or
, or
.
Start with
Notice that 375º is the midpoint of this interval of temperatures. If we subtract all sides by 375º, then we get
so we can set and
, and we can rewrite this inequality in terms of absolute values as