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jussttbre

  • 3 years ago

Verify the identity. Justify each step.

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  1. jussttbre
    • 3 years ago
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  2. Mimi_x3
    • 3 years ago
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    well you know that tanx = sinx/cosx and cotx = cosx/sinx

  3. anonymous
    • 3 years ago
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    add \[\frac{b}{a}+\frac{a}{b}\]

  4. Mimi_x3
    • 3 years ago
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    \[\frac{sinx}{cosx} +\frac{cosx}{sinx} \] then simplify it

  5. jussttbre
    • 3 years ago
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    how do i simplify that?

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

  7. jussttbre
    • 3 years ago
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    so the answer is 1?

  8. Mimi_x3
    • 3 years ago
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    why not try it first; simplify it ithe answer cannot be 1

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