stargoddess
stargoddess
30-09-2016
Mathematics
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Limit of sec x as x approaches π/4
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caylus
caylus
30-09-2016
Hello,
[tex]$ \lim_{x \to \frac{\pi}{4} } \dfrac{1}{cos\ x}\\ = \dfrac{1}{ \dfrac{ \sqrt{2}}{2} } \\ =\dfrac{ 2}{\sqrt{2}}=\sqrt{2}\\ [/tex]
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