Can someone solve this problem?
回答 (2)
2008-02-04 3:54 am
✔ 最佳答案
[25]2/x^2 y +5/3x^3
=(2xy+5y)/3x^3 y
=y(2x+5)/3x^3y
=(2x+5)/3x^3
2008-02-04 1:01 pm
Assuming this is the question: [ 2 / ( (x^2)*y ) ] + [ 5 / (3x^3) ]
[ 2 / ( (x^2)*y ) ] + [ 5 / (3x^3) ]
= [ ( 2*(3x) ) + 5*y ] / (3yx^3)
= (6x+5y)/(3yx^3)
[ 2 / ( (x^2)*y ) ] + [ 5 / (3x^3) ]
= [ ( 2*(3x) ) + 5*y ] / (3yx^3)
= (6x+5y)/(3yx^3)
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080203194526AALYimo