Cách làm cho bạn:
a) \( \frac{\pi}{18}rad=\left ( \frac{\pi }{18}.\frac{180}{\pi } \right )^0=10^0\)
b) \( \frac{3\pi}{16}rad=\left ( \frac{3\pi}{16}.\frac{180}{\pi } \right )^0=33^045'\)
c) \(-2rad=\left ( -2.\frac{180}{\pi } \right )^0\approx -114^035’30’’\)
d) \( \frac{3}{4}rad=\left ( \frac{3}{4}.\frac{180}{\pi } \right )^0=42^058'19''\)
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