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Math Help - Please help due in 2 hours!! :(

  1. #1
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    Exclamation Please help due in 2 hours!! :(

    Screenshot by Lightshot <----


    I have been doing math for 6 hours straight and my brain is fried. These are the last questions due on my hw and I don't understand. Please help!!!

    Any kind of insight would help.

    Thanks so much!!
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  2. #2
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    Re: Please help due in 2 hours!! :(

    Hey nhoward.

    In terms of Q5,Q6,Q7 you need to find the values which the inequalities have in common.

    We know that sin(x) is > 0 when x is in [0,pi] and < 0 when x is in (pi,2pi). cos(x) is > 0 when x is [0,pi) and (3*pi/2,2pi]

    With regards to trigonometric functions do you have to find a value for theta or is it something else? The reason I ask is because they give values for r which implies that you need to use that to find something.
    Thanks from topsquark
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  3. #3
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    Re: Please help due in 2 hours!! :(

    Quote Originally Posted by nhoward View Post
    Screenshot by Lightshot <----


    I have been doing math for 6 hours straight and my brain is fried. These are the last questions due on my hw and I don't understand. Please help!!!

    Any kind of insight would help.

    Thanks so much!!
    Have you made any attempt at all? We are not a homework service, you are only supposed to post two questions per thread, and you are supposed to show some effort - i.e. show what you have tried and exactly where you are stuck.
    Thanks from topsquark
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  4. #4
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    Re: Please help due in 2 hours!! :(

    nhoward Prove it is right..you have to show us some of your work...anyway for Q5,6,7 if you draw a Unit Circle..you will find the answers to your problems immediately.
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