SAT2数学Level 2练习题 Question #7:
If a, b and c are the sides of any triangle, which of the following inequalities is not true?
(a) a·b > 0
(b) a + b > c
(c) a + c/2 >b
(d) b + c > a
(e) (a + b)·(b + c) > a·c
SAT2数学Level 2练习题 Question #8:
Question #8: For any x such that 0 < x < ?/2, the expression (1 - sin2x)/cos(x) + (1 - cos2x)/sin(x) is equivalent to:
(a) sin(x)
(b) cos(x)
(c) sin(x) - cos(x)
(d) sin(x) + cos(x)
(e) 2sin(x)
SAT2数学Level 2练习题 Question #9:
Question #9: A line has parametric equations x = t + 3 and y = t + 9. The slope of the line is:
(a) 3
(b) 9
(c) 1
(d) 4
(e) 5
SAT2数学Level 2练习题 Question #10:
Question #10:
x-5037
y2.0158.6417.92
Which of the following equations best models the data in the table above?
(a) y = 5· 1.2x - 2
(b) y = 4· 1.2x
(c) y = 5· 1.3x
(d) y = 5· 1.2x - 1
(e) y = 5· 1.3x 1
要想SAT2数学成绩有所提高，坚持每天做练习是十分必要的，就像这样每天完成SAT2数学Level 2练习题，并进行总结，日积月累，成绩就会有明显地提高。
