plzz solve this question
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its a fact that sec
![\sqrt[ - 1]{ \sec(x) } \ + \sqrt[ - 1]{ \csc(x) } = \pi \div 2](https://tex.z-dn.net/?f=+%5Csqrt%5B+-+1%5D%7B+%5Csec%28x%29+%7D++%5C+%2B++%5Csqrt%5B+-+1%5D%7B+%5Ccsc%28x%29+%7D++%3D+%5Cpi++%5Cdiv+2 "\sqrt[ - 1]{ \sec(x) } \ + \sqrt[ - 1]{ \csc(x) } = \pi \div 2")
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