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(1/36)/(1/4+1/12-7/18-1/36)+(1/4+1/12-7/18-1/36)/(1/36)thanks
题目详情
(1/36)/(1/4+1/12-7/18-1/36)+(1/4+1/12-7/18-1/36)/(1/36)
thanks
thanks
▼优质解答
答案和解析
(1/4+1/12-7/18-1/36)/(1/36)
=(1/4+1/12-7/18-1/36)*36
=9+3-14-1
=-3
(1/36)/(1/4+1/12-7/18-1/36)
=[(1/4+1/12-7/18-1/36)/(1/36)]^(-1) 【^(-1)是倒数的意思】
=(-3)^(-1)
=-1/3
(1/36)/(1/4+1/12-7/18-1/36)+(1/4+1/12-7/18-1/36)/(1/36)
=-1/3-3
=-10/3
=(1/4+1/12-7/18-1/36)*36
=9+3-14-1
=-3
(1/36)/(1/4+1/12-7/18-1/36)
=[(1/4+1/12-7/18-1/36)/(1/36)]^(-1) 【^(-1)是倒数的意思】
=(-3)^(-1)
=-1/3
(1/36)/(1/4+1/12-7/18-1/36)+(1/4+1/12-7/18-1/36)/(1/36)
=-1/3-3
=-10/3
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