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Left Hand Side

$=\frac{1}{sec^2A}+\frac{1}{cosec^2A}$

$=cos^2A+sin^2A$

$=1$

$=$ Right Hand Side

[ Proved ]

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Rules Applied,

  • $cos \theta = \frac{1}{sec \theta}$
  • $sin \theta = \frac{1}{cosec \theta}$
  • $sin^2\theta+cos^2\theta = 1$

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