Recent content by luckyducky87

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    What is the image of a function?

    Hi can someone please explain to me in simple english what the image of a function is... People have told me it is the range, however i have heard technically it is not the range but it is similar? Thanks for your time cheers, Lucky
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    Implicit differentiation, whats going wrong?

    Thanks, appreciate the help, Lucky
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    Implicit differentiation, whats going wrong?

    The answer is d2y/dx2= -(3x^6/y^7) -(3x^2/y^3), cannot manipulate dy/dx = -x^3/y^3 to look like it though, any help or tips appreciated thanks, lucky.
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    Implicit differentiation, whats going wrong?

    Implicit differentiation, what's going wrong!? Hey people can someone point out to me please where I'm going wrong with part B of this question, can't get it to look the answer in the book, d2y/dx2 = -3(x^6/y^7)- 3(x^2/y^3). My answer is listed below under part B section, but i can't...
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    Optimizing Thought Processes for Solving Differential Equations

    Hello physics forum, can someone please explain to me the thought process that one uses to solve a question like this? A leak has been discovered in a water supply pipe that will take several days to repair. Suppose that it is leaking at a rate given by the function 4 + 0.2t, that is...
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    Solve Simple Loading System: Express Resultant Force in i & j

    all my answers are getting rejected for some reason, is there something I'm missing? :S
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    Solve Simple Loading System: Express Resultant Force in i & j

    didn't u need to express a value for i? like 0i-6.25j?
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    Solve Simple Loading System: Express Resultant Force in i & j

    what was the answer to this question? j(6.25) doesn't seem right to me
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