lisaislisa

真是辛苦猫猫了...
我们考试还...
你忙的过来吗? 丫头可以来帮忙做几天..明天消息给你哦..
我是二梯的课..忘记那个老师姓什么了..;p
^^

BleSS YouR A brILLiaNT nEW yEAr !!
^^

lisaislisa

to mingja:
the shadow area , which is (64root3)-32pai also equals
(root3)*r^2-1/2pai*r^2
therefore r^2={32[2(root3)-pai]}/{1/2[2(root3)-pai]}=64
r=8

lisaislisa

to mingja
the shadow is the the triangel minus three'pei', each of which is 1/6 of the round

^^

lisaislisa

to victor :
34. x^2+6x+q, what is the value of q? D
1). X^2+6x+q=x^2+rx+r-2. some r is satisfied for this quotation. All variable X is satisfied for this
2). x^2+6x+Q= (x+m)(x+n), some m and n is satisfied for this quotation. All variable X is satisfied for this
[讨论]D
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my ans A

xing KU Le !

^^