题目
题目

MCD2130 - T2 - 2025 10.7 Online Quiz - MCD2130_QUIZ_NINE Circular Functions, Continuity and Differentiability

单项选择题

MTH1010_09_01_1

选项
A.a. a)
B.b. b)
C.c. c)
D.d. d)
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标准答案
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思路分析
First, note the given values: cos(θ) = -3/5 and sin(θ) = 4/5. The signs tell us the quadrant in which θ lies. Since cosine is negative and sine is positive, θ must be in Quadrant II (where sin > 0 and cos < 0). Option (a): 0 < θ < π/2. Th......Login to view full explanation

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