algebra/trignometry

Verify that each trigonometric equation is an identity tan^2+1/sec α =sec α

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asked by maria
  1. Please check with your previous post before re-posting the same question.

    http://www.jiskha.com/display.cgi?id=1310559328

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    posted by Reiny
  2. x=-16 ,y=17 when x squared -4y squared

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    posted by kathy

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