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Math Help - [SOLVED] Trig Equation:(tanx+)(cosx-1)

  1. #1
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    [SOLVED] Trig Equation:(tanx+)(cosx-1)

    Hi, I am trying to find x in
    (tanx+)(cosx-1)
    I FOILed:
    sin+cos-tan-1=0
    sin+cos-(sin/cos)-1=0
    now I am stuck.
    please help, any help will be greatly appreciated.
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  2. #2
    No one in Particular VonNemo19's Avatar
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    Detroit, MI
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    Quote Originally Posted by So0pahBoy View Post
    Hi, I am trying to find x in
    (tanx+)(cosx-1)
    I FOILed:
    sin+cos-tan-1=0
    sin+cos-(sin/cos)-1=0
    now I am stuck.
    please help, any help will be greatly appreciated.
    You don't have to foil my friend...
    (\tan{x}+1)(\cos{x}-1)=0

    Thhis statement implies that

    \tan{x}=-1
    or
    \cos{x}=1
    .

    Can you finish?
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  3. #3
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    Many thanks, how stupid of me.
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  4. #4
    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by So0pahBoy View Post
    Many thanks, how stupid of me.
    Not stupid, just over-analytical.
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  5. #5
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    a product of my silly sleep deprived brain.
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