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Let L=("lim")(xvec0)(a-sqrt(a^2-x^2)-(x^...

Let `L=("lim")_(xvec0)(a-sqrt(a^2-x^2)-(x^2)/4)/(x^4),a > 0. IfLi sfin i t e ,t h e n` `a=2` (b) `a=1` `L=1/(64)` (d) `L=1/(32)`

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