已知根号2=1.414 根号20=4.472 根号x=14.14 根号y=447.2 根号20000=m 求y除x-m的值
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解决时间 2021-03-26 15:07
- 提问者网友：辞取
- 2021-03-25 19:31
已知根号2=1.414 根号20=4.472 根号x=14.14 根号y=447.2 根号20000=m 求y除x-m的值
最佳答案
- 五星知识达人网友：掌灯师
- 2021-03-25 20:33
√2=1.414
10*√2=14.14
√200=14.14
∴x=200
√20=4.472
100*√2=447.2
√20000=447.2
∴y=20000
y/x-m
=20000/200-√20000
=100-447.2
=-347.2
10*√2=14.14
√200=14.14
∴x=200
√20=4.472
100*√2=447.2
√20000=447.2
∴y=20000
y/x-m
=20000/200-√20000
=100-447.2
=-347.2
全部回答
- 1楼网友：迟山
- 2021-03-25 21:58
√2=1.414
10*√2=14.14
√200=14.14
∴x=200
√20=4.472
100*√20=447.2
√200000=447.2
∴y=200000
y/x-m
=200000/200-√20000
=1000-100√2
=1000-141.4
=858.6
10*√2=14.14
√200=14.14
∴x=200
√20=4.472
100*√20=447.2
√200000=447.2
∴y=200000
y/x-m
=200000/200-√20000
=1000-100√2
=1000-141.4
=858.6
- 2楼网友：毛毛
- 2021-03-25 21:41
√2=1.414
10*√2=14.14
√200=14.14
∴x=200
√20=4.472
100*√20=447.2
√200000=447.2
∴y=200000
y/(x-m)
=200000/(200-√20000)
=200000/(200-100√2)
=2000/(2-√2)
=2000(2+√2)/(2-√2)(2+√2)
=2000(2+√2)/2
=1000(2+√2)
=1000(2+1.414)
=3414
y/x-m
=200000/200-√20000
=1000-100√2
=1000-141.4
=858.6
10*√2=14.14
√200=14.14
∴x=200
√20=4.472
100*√20=447.2
√200000=447.2
∴y=200000
y/(x-m)
=200000/(200-√20000)
=200000/(200-100√2)
=2000/(2-√2)
=2000(2+√2)/(2-√2)(2+√2)
=2000(2+√2)/2
=1000(2+√2)
=1000(2+1.414)
=3414
y/x-m
=200000/200-√20000
=1000-100√2
=1000-141.4
=858.6
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