Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
正弦法則: a/sin 30° = c/sin 90° 。 a = 4 のとき、 c を計算せよ。
正弦法則: a/sin 30° = c/sin 90° 。 a = 4 のとき、 c を計算せよ。
Natural Language
Math Input
Extended Keyboard