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2024年4月26日发(作者：ios 15建议更新吗)
2016年全国2卷数学答案及解析
1) The format errors in the article have been removed.
2) ___.
3) ___.
Part I
le Choice: This n contains 12 ns。each worth 5
points。Choose the one n that best answers the n from the four
provided.
1) Given z = (m+3) + (m-1)i。where z corresponds to a point
in the fourth quadrant of the complex plane。what is the range of
possible values for m?
A) (-3,1) (B) (-1,3) (C) (1,∞) (D) (-∞,-3)
Answer] A
Analysis] To ensure that the point corresponding to z is in the
fourth quadrant。we need to satisfy the n that:
m+3>0
m-1<0
Solving this system of inequalities yields -3 < m < the
answer is A.
Concept] Geometric n of complex numbers
Insight] Problems involving the n of complex numbers and
the n of corresponding points can be ___ real and imaginary parts
of the complex number must ___ the complex number to algebraic
form and write a system of ns (inequalities) for the real and
imaginary parts.
2) Given sets A = {1,2,3}。B = {-1,0,1,2}。and C = {x |
(x+1)(x-2) < 0.x ∈ Z}。what is A ∩ B ∩ C?
A) {1} (B) {1,1,2,3} (C) {0,1,2,3} (D) {2}
Answer] C
Analysis] Set B = {x | -1 < x < 2.x ∈ Z} = {0,1}。and since
A = {1,2,3}。we have AB = {0,1,2,3}。Therefore。the answer is
C.
Concept] Set ns
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