ACT考試

備考資料
當前位置: 主頁 > ACT考試 > ACT真題 >

ACT部分數學真題回顧與答案解析

摘要:ACT考試中,ACT真題是最好的練習題目。下面是3道ACT數學真題,大家可以作為參考。 Question 1:What is sec(a)sin(a) + csc(a)cos(a) , if a =45 o ? (a) 2 (b) 2 (c) 1 (d) 1/2 (e) 1/2 Answer: sec(a)sin(a) + csc(a)cos

  ACT考試中,ACT真題是最好的練習題目。下面是3道ACT數學真題,大家可以作為參考。

  Question 1:What is sec(a)sin(a) + csc(a)cos(a) , if a =45o?

  (a) √2

  (b) 2

  (c) 1

  (d) 1/√2

  (e) 1/2

  Answer: sec(a)sin(a) + csc(a)cos(a) = [1/cos(a)]sin(a) + [1/sin(a)]cos(a) = sin(a)/cos(a) + cos(a)/sin(a) = (√2/2)/(√2/2) + (√2/2)/(√2/2) = 1 + 1 = 2.

  Question 2:In the standard (x,y) coordinate plane, 3 corners of a square are (4,–3), (–4,3), and (–4,-3). What are the coordinates of the square’s fourth corner?

  (a) (1/4, -1/3)

  (b) (4, 3)

  (c) (3, 4)

  (d) (3, -4)

  (e) (3, -4)

  Answer:The easiest way to solve this problem is to sketch the 3 corners of the square. We notice that the fourth corner of the square is (4, 3).

  Question 3:Prizes totaling $60,000 were awarded unequally between 3 contestants. Which of the following choices could be the highest prize?

  (a) $5,000

  (b) $10,000

  (c) $15,000

  (d) $25,000

  (e) $65,000

  Answer:The highest prize should be higher than one third of $60,000 and lower than $60,000. The only answer that satisfies this condition is $25,000.

頂一下
(0)
0%
踩一下
(0)
0%
推薦閱讀
  • 波浪
  • 波浪
  • 波浪
  • 波浪