Recent content by baseballman

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    Checking My Homework: Finding Mistakes in a Limit

    Thanks a lot spamiam and lurflurf!
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    Checking My Homework: Finding Mistakes in a Limit

    Homework Statement I tried to solve this limit, but failed in the process 'cause the answer's 1 but I get 0. I'd just like for you to check out my steps and tell me what I've done wrong, not post a different solution. Thanks in advance. \mathop {\lim }\limits_{x \to 0} \frac{{2\sin \left(...
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    Show Fx,Fy when x>>a: 65 Character Title"Show Fx,Fy When x Much Greater Than a

    Thanks for your responses anirudh215 and CompuChip, but I really don't know what you mean by "expand". If you could show some steps I might have a clue.
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    Show Fx,Fy when x>>a: 65 Character Title"Show Fx,Fy When x Much Greater Than a

    Show that if x>>a... Homework Statement I've got the following force generated by an electric field {F_x} = - KQq\frac{1}{{x\sqrt {{x^2} + {a^2}} }} {F_y} = \frac{{KQq}}{a}\left( {\frac{1}{x} - \frac{1}{{\sqrt {{x^2} + {a^2}} }}} \right) Homework Equations I need to show that...