1.如果B是在(0,180°)之間的話,那么B為41°或139°.
2.如果B是在(-R,+R)之間的話,那么B為41°+k* 360°或139°+k*360°,其中k為整數(shù),也就是在(-Z,+Z)之間
當(dāng)sinB為0.6545555時(shí),B為多少度
當(dāng)sinB為0.6545555時(shí),B為多少度
數(shù)學(xué)人氣:186 ℃時(shí)間:2020-10-02 03:06:23
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