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kassking kassking
  • 12-06-2016
  • Mathematics
Answered

Provide a counterexample:

sinx = 1/sinx

Verified Answer :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 16-06-2016

sin x = 1/sin x
\(sin^{2} x=1 \\ sin x= \pm1 \\ sinx=1 \ or \ sinx=-1 \\ x= sin^{-1} 1 \ or \ x= sin^{-1} (-1) \\ x= \frac{ \pi }{2} \ or \ x= \frac{3 \pi }{2}\)

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