2 نقطة (نقاط) السؤال 17 lim (x,y)=(0,0) رو + ln(a2 ( 2 + 2.) + 4) 40 10 does not exist O 11 اله .im (4+ (x2 + y2) In(x
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11 اله .im (4+ (x2 + y2) In(x2 + y²)) )+(0,0) 40 10 0 does not exist