MATHS F.2 (TMR TEST!!!!!!)PLS

2014-03-28 8:11 am
IF 7A=6(B+C),EXPRESS 3/7A IN TERMS OF B AND C.

回答 (1)

2014-03-28 8:22 am
✔ 最佳答案
7A=6(B+C)

(3/49)(7A)=(3/49)6(B+C)

(3/7)A = (18/49)(B+C)

2014-03-28 00:25:26 補充:
如果是要求計 3/(7A) 則

3/(7A) = 3/[6(B+C)]


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