identities

👨🏻‍🏫 學術台數學

YuenKi

2007-02-11 7:39 am

If 3x-C(2x+1) is an identity of D(2x-1), find the values of C and D.

回答 (1)

myisland8132

2007-02-11 7:43 am

✔ 最佳答案

If 3x-C(2x+1) is an identity of D(2x-1), find the values of C and D.
3x-C(2x+1) =D(2x-1)
3x-2Cx-C=2Dx-D
(3-2C)x-C=2Dx-D
C=D
3-2C=2D
SO
3-2D=2D
C=D=3/4

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