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发表于 11-11-2013 14:37:33|来自:新加坡
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本帖最后由 meidance 于 11-11-2013 15:49 编辑
H2数学1,找到部分答案:
Q1)
(i) (-38/3,-129/6,-25/3)
(ii) As the normal of p, q and r are not parallel. The 3 planes have no common point of intersection, and they formed an infinitely long triangular prism.
Q2)
{y belongs to R : y >=3+sqrt12 or y<=3-sqrt12}
Q10)
(I) z=3/2 – Be^(-2x), B is positive real constant.
(ii) y = 3x/2 + Be^(-2x)/2 + d where d is real constant.
(iii) a = -2, b = 3.
(iv) y=3x/2 and y=3x/2 + 1
Draw y = 3x/2 + Be^(-2x)/2 + d
And y =3x/2, asymptote is y =3x/2 + d.
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