Recent content by garyng2001hk

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    Integrate Exp[-(y^2)]*(y^2) w.r.t. y

    Homework Statement Integrate Exp[-(y^2)]*(y^2) w.r.t. y Homework Equations The Attempt at a Solution i need to express the answer in terms of error function Error Function: Erf(x) = 2/Sqrt[Pi] *Integrate Exp[-t^2] w.r.t. t, from 0 to x My attemp is to use integration by part, seems...
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    Finding the Limit of f(x) Near x=2

    If i subs x=2 into the denominator, the denominator goes to 0. therefore, the numerator should equals 0 and x=5
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    Finding x: Graphical Solution to sin(x/2)=x/4

    Homework Statement Solve for x.Homework Equations Given sin(x/2) = x/4.The Attempt at a Solution no idea. the question gives a hint: use graphical method.
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    Finding the Limit of f(x) Near x=2

    Homework Statement Find lim(x --> 2) f(x) Homework Equations Given lim(x-->2) ((f(x)-5)/x-2)) = 3 Find lim(x --> 2) f(x) The Attempt at a Solution The answer is 5. but i dun know the formal steps.
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    Solve sin(y/2)=y/4: Step-by-Step Guide

    Please show the steps
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