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kaisan

  • 4 years ago

simplify the expression: 1/cotx-secx/cscx

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  1. jaersyn
    • 4 years ago
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    1/(cosx/sinx) - (1/cosx)/(1/sinx) = (sinx/cosx) - (sinx/cosx) = 0

  2. kaisan
    • 4 years ago
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    @jaersyn how u get (sinx/cosx)-(sinx/cosx)?

  3. jaersyn
    • 4 years ago
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    cotx = cosx/sinx secx = 1/cosx cscx = 1/sinx

  4. jaersyn
    • 4 years ago
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    also tanx = sinx/cosx

  5. kaisan
    • 4 years ago
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    @jaersyn |dw:1334812473900:dw| so it look like this? then what did u do from there to get (sinx/cosx)-(sinx/cosx)?

  6. jaersyn
    • 4 years ago
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    if you multiply the top and bottom by the reciprocal you can get rid of the denominators

  7. jaersyn
    • 4 years ago
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    |dw:1334802046545:dw|

  8. kaisan
    • 4 years ago
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    i got it! thank you!

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