Mathematics
Senior High
Solved
想問這題我右下角圈起的地方為什麼不能是12+根號的？
玩玩看
44656+12+2645
4+376
-4416623
5°
1)設cos+3sin=2,且0°<<90°,試求cos+sin日之值。
1OS00
354-2-105)
510-4-41050+1050² (cos = bissing)
1-1050
9-90050-4-4050 +20Se²
【88年日大自】
Ans:
4+√e
5
2
Cose =4-12sine +9506=
1-SinB
(@SA = 4-12540 + 951hG
10 sing²-125n8+3=0
C
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