(√3/2)cosx-(1/2 )sinx=1/2
cos(x+π/6)=1/2
x=2{(nπ -(π /3)}2nπ
라고 저는 풀었는데 답은 x=nπ+π/3-(-1)^n (π /6)
라네요. 제가 풀이한것에서 틀린게 있나요? 설명좀부탁드려요
삼각형 두 변의 길이를 알 때 사이각 구하기
- ?
-
?
cos A = 1/2 일때 A 의 일반해에 맞게 하는 것이 좋을 것 같습니다.
수식이 정확하게 의미전달이 되지 않네요.
-
?
좋은 자료 및 정보 부탁드립니다. ed hardy jeans for men
-
?
Get all of these fabulous new era hats and more high-end designer fashions for less when you shop on the Internet. Now everyone can own high-end designer red bull hats. wholesale new era hats being one of the largest and most prominent fashion company in the world, it has an obligation of beating the standards set by others.The dashing and extraordinary herve leger uk you get will attract every eye in a crowd and makes you feel more confident. If you are not having herve leger sale yet, check them out and own them now as were not so affordable ever before. You will not miss them out. Be it Christmas or Valentine's Day or any other special day that you would like to celebrate, a cheap herve leger gift would be just perfect for any occasion. Many people think of the perfect herve leger bandage dress to purchase for their loved ones.
두번째 식에서 cos 값이 1/2 가 나올려면 60, 120, 360+60, 360+120 등입니다.
세번째 식으로 60, 120, 360+60, 360+120 나오는 지 확인 요망