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[" 23.Let "L=lim(x rarr0)(a-sqrt(a^(2)-x...

[" 23.Let "L=lim_(x rarr0)(a-sqrt(a^(2)-x^(2))-(x^(2))/(4))/(x^(4)),a>0." If "L" is finite,then "],[[" (a) "a=2," (2009) "],[" (b) "a=1,],[" (c) "L=(1)/(64),],[" (d) "L=(1)/(32)," (i) "(1)/(32)]]

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