7d988474b4806b8723ed87e3349c7068af515bfadf8241d0a92ec5ebe908f42405b614d14aaf666b381e409488f78de96059d5290c


7de4f17eb08a6df623e78ee7339c706f0e5dff6fc00e9cf2f00d6eb8d061874760b6466c938d239ac103fe0069014d052923c04c

코사인법칙 쓴 거

7b998600b6f61d8423e6f2ec309c701cc135944be83e69862c7a899812b9ef8bdcf116ca0d65aedec65ea92b43ff9e5c5908cf1b

수선 내린 거

3sqrt(6)이 어떻게 나온 거지