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Solution: where 6 is a cyclic knot of cyclic decimals).
Convert the loop decimal to a fraction:
Let : x= , then: 10x=
So: 9x=
x=1 15 so:
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For the sum of the proportional series, the first term a1=, the proportional term q=, substituting the summation formula: a1(1-q n) (1-q), since when n=infinity, then the sum of the proportional series: then:
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The original formula =) is that the first term is 1 10 2, and the common ratio is 1 10 There is a proportional sequence of (n-1) terms, and n tends to find the limit to infinity.
lim(n tends to infinity) [(1 10 2) (1-1 10) (n-1)] (1-1 10) = 1 90
Original formula = 1 10 + 6 1 90 = 1 6
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This does not require the calculation process to be added directly.
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Summary: If you pass, you can get it. The calculation is as follows. That is, there are 40 zeros.
Math:
Mathematics is the study of concepts such as quantity, structure, change, space, and information. Mathematics is a general means for humans to strictly describe the abstract structure and pattern of things, and can be applied to any problem in the real world, and all mathematical objects are inherently artificially defined. In this sense, mathematics belongs to the formal sciences.
And not natural science. Different mathematicians and philosophers have a range of opinions on the exact scope and definition of mathematics.
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Because, according to the power operation rule of the rule, the suspect is 10000= 6 100=( 2* 3) 100 (.
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The calculation method is to convert the rotten plum 1 to the 2nd power to the 2nd power.
Hunger 1 2) = .
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Isn't it one fraction of this number? You take this number as a square, which is 1 (. Do the math, and you get it: 1. Shirt.
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Solution: (Yuanli Li (1 2)
6 10) -4] (hail 1 2).
Rotten hunger 1 3600
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This representation is found to the 1 2nd power, which is the square root, which is approximately equal to.
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That's why Bifu's closed vertical calculation of the square root of the sedan Hui Dashu is
Please click "Answer" in the lower right corner to support it.
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Calculation: 0) 0)025 to find the calculation process and analysis.
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Shed Jane. 0.21 0 Pei and Zheng 54
Learn notation.
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It is recommended to use the scientific section of the town to grasp the infiltration hall expression:
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Comments] The order of mixed operations of the four decimal numbers is the same as the order of mixed operations of the four shouting of integers, which are calculated first and multiplied and divided, and then added and subtracted.
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The dividend and the divisor are multiplied by 40 to obtain.
Original = 24
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。1. There are m "0" in the hypothesis, and n "0" in the hypothesis;
2. Expressed by scientific notation: ;; 3、。