SLPU内可装入()个UELP/UFLP
A.3
B.4
C.5
D.6
参考答案:B
(理)已知△ABC顶点的直角坐标分别为A(a,4)、B(0,b)、C(c,0).
(1)若a=3,b=0,c=5,求sinA的值;
(2)若虚数x=2+ai(a>0)是实系数方程x2-cx+5=0的根,且∠A是钝角,求b的取值范围.
In relation to insider dealing:
(b) Explain the meaning of ‘relevant information’. (4 marks)