Recent content by economicstyro

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    Domain and Range of this function

    Yeah you're right. My guess is that the OP is currently covering this material in class, and the homework is designed by his/her professor to supplement the lectures. Otherwise I cannot think of an alternative approach to this problem without using the derivative. The tabular method is very...
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    Domain and Range of this function

    @HallsofIvy: I guess you meant "if and only if the NUMERATOR is zero, and the DENOMINATOR is nonzero" (both these conditions must be satisfied)? :) @OP: As for the range, I think the general approach is to draw the graph of the function, and take all possible values of y (images of x). In our...
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    Straight line motion MCQ (Multiple choices)

    I suggest you pay careful attention to this sentence: "Its acceleration AT ANY POINT is denoted by β." Making an immediate inference from this fact should give you the correct answer choice immediately :). Hope that helps
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    Schools Possible alternative for getting into grad school

    I do not mean to curb your enthusiasm; I just want to say honestly that you have to be more realistic about your plan to pursue a graduate degree in Physics. As far as I am concerned, upper-level Physics, like other disciplines, requires a high level of abstract thinking coupled with proficient...
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    Finding the area of trapezoid area question

    Hello nemesest, for this problem, you can make a substitution u=y-x, v=y+x, compute the Jacobian, and express the integral in terms of u and v (don't forget that the final representation of the integral must involve the Jacobian). The result is (3/2)*sin1. Hope that helps :)
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    How to find differencial by using implicit functions?

    Hello munkhuu, I believe this link would be tremendously helpful in solving your problem: http://tutorial.math.lamar.edu/Classes/CalcIII/ChainRule.aspx To use implicit differentiation, you need to first present the given equation in the form F(R,c,h) by isolating the three variables into one...
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    Intriguing topics for Economics presentation

    I think your choice of topic would mostly depend on your course requirements, expected amounts of efforts involved, etc. In order to give an informal yet still inspiring intriguing Economics presentation, I'd suggest starting with SEVERAL topics that are directly related to the community...