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ZX-0D7FD1B1D9Bluebook试题8 · 第 16 题
Bluebook试题8 · 原库模块 1 · Q16 原库参考解析
In right triangle \( RST \), the sum of the measures of angle \( R \) and angle \( S \) is 90 degrees. The value of \( sin(R) \) is \( \frac{\sqrt{15}}{4} \). What is the value of \( cos(S) \)?
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