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1. |
All the pairs (x, y) that satisfy the inequality \({2^{\sqrt {{\rm{si}}{{\rm{n}}^2}{\rm{x}} - 2{\rm{sinx}} + 5} }}\cdot\frac{1}{{{4^{{\rm{si}}{{\rm{n}}^2}{\rm{y}}}}}} \le 1\) also satisfy the equation: |
A. | 2|sin x| = 3sin y |
B. | 2sin x = sin y |
C. | sin x = 2sin y |
D. | sin x = |sin y| |
Answer» E. | |