1.（-2x^2)^3+(-4x^3)^2-(-2x)^2×(-1/2x)^4 2.(2×10^2)^3×(-3×10^6)^2_百度知道
1.（-2x^2)^3+(-4x^3)^2-(-2x)^2×(-1/2x)^4 2.(2×10^2)^3×(-3×10^6)^2
.;3×1/3)^2m5.,y=1/1×1&#47.(1&#47,求(-1&#47，求(-3)^m×(-1&#47.×3×2×1)^20124;2×1)^2012×(×2009×.若m是正整数..×1/;2011.已知n为正整数，且(x^2)^n=9;3x^3n)^2-3(-x^2)^2n的值6.已知x=2011
;X^62.×1&#471，(-3)^m×(-1/2009×.×3×2×1)^2012=（1/×1&#47、1）当m是奇数时;3×1/×……×1/2×2×1×1)^2012=14;2×1)^2012×(×2009×;9-3）=-1626;3)^2m=-（1&#47，(-1&#47、由已知求得x^2n=9.;3）^m
2）当m是偶数时;3^m5.;9X^6n-3X^4n=X^4n（X^2n/3×3×1&#47、（-2x^2)^3+(-4x^3)^2-(-2x)^2×(-1/3)^2m=1/x)^4=-8X^6+16X^6-1&#47，(-3)^m×(-1&#47、(1&#47、(2×10^2)^3×(-3×10^6)^2=72×10^183、x^3×x^3m×(y^3)^m+1=m)×1&#47.;×1/3x^3n)^2-3(-x^2)^2n=1/4X^6=31&#47
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;)^2m=(-3×-1&#47.×1&#47..(1/××2×1×1)^2012=1^2012=14.(-3)^m×(-1&#47.;3×3×1&#47.;3)^m5;3x^3n)^2-3(-x^2)^2n=(-1&#47...(1/3)^m=(-1&#47.;3)^m×(-1/.;3×1&#47.×3×2×1)^2012=;2×1)^2012×(×2009×;2009×;)^m=1^m×(-1&#47.(-1/×.×1/3x^2n)^3-3(-x^2n)^2=-27-243=-2706
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出门在外也不愁求助一道数学题 求函数y=分子是20-x^2,分母是（根号x^2+x-6）-(根号x+10)中自变量x的取值范围_百度知道
求助一道数学题 求函数y=分子是20-x^2,分母是（根号x^2+x-6）-(根号x+10)中自变量x的取值范围
-3】U【2，-4）U（-4，并且x+10＞0(x+3)(x-2)≥0：x&#178y = (20-x²+x-6) -√(x+10)≠0x²+x-6) -√(x+10)} 根号下无负数：√(x²{√(x&#178,4）U（4;+x-6≥0，并且x＞-10∴-10＜x≤-3;)/≠16x≠±4 综上：x∈（-10，或x≥2分母不为零;+x-6≠x+10x&#178
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4)∪(4;=-10且x≠4且x≠-4所以x∈[-10;=2且x&=0且x+10&=0且x&=-3或x&=-10且x^2≠16x&=0且x^2+x-6≠x+10(x+3)(x-2)&gtx^2+x-6&gt,-3]∪[2,-4)∪(-4
x∈[-10,-4)∪(-4,-3]∪[2,4)∪(4,+∞)
若题成立，必有：x2+x-6&0，x+10&0，:x2+x-6≠x+10所以：-10&x&-2，x&3，x≠±4
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出门在外也不愁10^-2 -10^-6.5用同底幂函数公式_百度知道
10^-2 -10^-6.5用同底幂函数公式
但为什么算得不一样的结果：a^x + a^y = a^x [1+ a^(y-x)]
a^x - a^y = a^x [1- a^(y-x)]
注.5*10^4.5-10^-6：y大于或等于x如果y小于x就写成a^x + a^y = a^y [a^(x-y)+ 1]
（（（（a^x - a^y = a^y [a^(x-y) - 1] ））））我用的公式，我好像没算错啊10^-2-10^-6。公式可以概括如下.23410^-6.5 = 010^-2 -10^-6.5 = -3，或者直接算出来再相加减.5用同底幂函数公式同底幂数的加减只能提取公因式
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01[1-1&#4710^(-2)-10^(-6;10^4.5]=-0.5)=0
为什么要用第二个公式啊，不是说如果y小于x就写成a^x - a^y = a^y [a^(x-y) - 1]
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5误写成10^6，则结果为-3.5，则结果为-3.5误写成10^-4.4 * 10^-7 若将第二个10^-6.5第二个公式输入时将10^4
你算错了！注意用计算器计算次序
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出门在外也不愁AR4 WGII Chapter 10: Asia - 10.6.2 The Himalayan glaciers
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IPCC Fourth Assessment Report: Climate Change 2007
Climate Change 2007: Working Group II: Impacts, Adaptation and Vulnerability10.6.210.6.2 The Himalayan glaciers
Himalayan glaciers cover about three million hectares or 17% of the mountain area as compared to 2.2% in the Swiss Alps. They form the largest body of ice outside the polar caps and are the source of water for the innumerable rivers that flow across the Indo-Gangetic plains. Himalayan glacial snowfields store about 12,000 km3 of freshwater. About 15,000 Himalayan glaciers form a unique reservoir which supports perennial rivers such as the Indus, Ganga and Brahmaputra which, in turn, are the lifeline of millions of people in South Asian countries (Pakistan, Nepal, Bhutan, India and Bangladesh). The Gangetic basin alone is home to 500 million people, about 10% of the total human population in the region.
Glaciers in the Himalaya are receding faster than in any other part of the world (see ) and, if the present rate continues, the likelihood of them disappearing by the year 2035 and perhaps sooner is very high if the Earth keeps warming at the current rate. Its total area will likely shrink from the present 500,000 to 100,000 km2 by the year 2035 (WWF, 2005). Table 10.9. Record of retreat of some glaciers in the Himalaya. Triloknath Glacier (Himachal Pradesh)&<td class="tbody t to 1995&<td class="tbody t&<td class="tbody t&Pindari Glacier (Uttaranchal)&<td class="tbody t to 1966&<td class="tbody t&<td class="tbody t&Milam Glacier (Uttaranchal)&<td class="tbody t to 1984&<td class="tbody t&<td class="tbody t&Ponting Glacier (Uttaranchal)&<td class="tbody t to 1957&<td class="tbody t&<td class="tbody t&Chota Shigri Glacier (Himachal Pradesh)&<td class="tbody t to 1995&60&<td class="tbody t&Bara Shigri Glacier (Himachal Pradesh) &<td class="tbody t to 1995&<td class="tbody t&<td class="tbody t&Gangotri Glacier (Uttaranchal)&<td class="tbody t to 1990&<td class="tbody t&<td class="tbody t&Gangotri Glacier (Uttaranchal)&<td class="tbody t to 2001&<td class="tbody t&<td class="tbody t&Zemu Glacier (Sikkim)&<td class="tbody t to 1984&<td class="tbody t&<td class="tbody t&
The receding and thinning of Himalayan glaciers can be attributed primarily to the global warming due to increase in anthropogenic emission of greenhouse gases. The relatively high population density near these glaciers and consequent deforestation and land-use changes have also adversely affected these glaciers. The 30.2 km long Gangotri glacier has been receding alarmingly in recent years ().
Between 1842 and 1935, the glacier was receding at an average of 7.3 the average rate of recession between 1985 and 2001 is about 23 m per year (Hasnain, 2002). The current trends of glacial melts suggest that the Ganga, Indus, Brahmaputra and other rivers that criss-cross the northern Indian plain could likely become seasonal rivers in the near future as a consequence of climate change and could likely affect the economies in the region. Some other glaciers in Asia – such as glaciers shorter than 4 km length in the Tibetan Plateau – are projected to disappear and the glaciated areas located in the headwaters of the Changjiang River will likely decrease in area by more than 60% (Shen et al., 2002).
Figure 10.6. Composite satellite image showing how the Gangotri Glacier terminus has retracted since 1780 (courtesy of NASA EROS Data Center, 9 September 2001).求助[4.2.2]华为IDEOS X5 - CM 10.1 V6.0_百度知道
求助[4.2.2]华为IDEOS X5 - CM 10.1 V6.0
:2打不了电话。很北极的4。联系人。短信:2有没有zip的拨号短信联系人刷机包zip。。。第三方软件也补能用。
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提取5.0版的拔号和联系存储文件解决
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