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jussttbre Group Title

Verify the identity. Justify each step.

  • one year ago
  • one year ago

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  1. jussttbre Group Title
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    • one year ago
  2. Mimi_x3 Group Title
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    well you know that tanx = sinx/cosx and cotx = cosx/sinx

    • one year ago
  3. satellite73 Group Title
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    add \[\frac{b}{a}+\frac{a}{b}\]

    • one year ago
  4. Mimi_x3 Group Title
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    \[\frac{sinx}{cosx} +\frac{cosx}{sinx} \] then simplify it

    • one year ago
  5. jussttbre Group Title
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    how do i simplify that?

    • one year ago
  6. Mimi_x3 Group Title
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    \[\frac{sinx*sinx}{cosx*sinx} +\frac{cosx*cosx}{sinx*cosx} \] and Note the fact that;; sin^2+cos^2x = 1

    • one year ago
  7. jussttbre Group Title
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    so the answer is 1?

    • one year ago
  8. Mimi_x3 Group Title
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    why not try it first; simplify it ithe answer cannot be 1

    • one year ago
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