TVET CHNS,Eng,Maths
Senior High
Resolved

想問這題數學@_@

只 )4. 當 記 且知A45C中, 42 = 2 主 了 且2 求 cosC 之值為 (A)5 (8)5 (c 3 (0D<。
高職 三年級統測數學複習

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