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How to remove the absolute value symbol with unknowns? For example, what form should |A+B|-|A-B| take? That is to say, if there is a problem in this form, between the two absolute values is a minus sign, what form should the following |A-B| take out the absolute value sign? What if it's a plus sign? Please use numbers, do not use words to answer this question, like: add a negative sign in front of what not! Just sign it -- uh... How to say, is for example the first situation, step by step how to simplify all written up!
According to the value range of algebraic expression in absolute value sign, it is discussed according to the situation
For example,|x-1|>2
When x-1>0, i.e. x >1, x-1>2, x >3 is obtained.
When x-10 is A >|B|>0, the original formula is simplified as 2B
2-A+B >0, A-BA >-B, simplified as 2A
3-A+B
How to remove absolute sign
≥0, The absolute value is directly removed
Less than 0, minus sign before absolute value
RELATED INFORMATIONS
- 1. If b is a positive number and c is a negative number, then -{ b-c} how to remove the absolute sign and why
- 2. Let three non-equivalent rational numbers be written in the form of 1, a+b, a and 0, a/b, b, and find the 2013 power of a + the 2014 power of b
- 3. 0.125 In 2008*8 in 2009=?
- 4. If the square of (a-3)+b+2 absolute value =0, then a power of b =(). 2. We hope that the Project Office will receive a total of 15 million yuan from all walks of life to finance the out-of-school children in the poverty-stricken areas in the west. (1) If each out-of-school child receives $500, how many out-of-school children can be funded by these donations? (Scientific notation of results) (2) If the average donation is 10 yuan per person, how many people need to donate to get the donation? (Scientific notation of results) If the square of (a-3)+b+2 absolute value =0, then the ath power of b =().
- 5. What is the square of minus three minus the absolute value of minus one plus the minus one-half power
- 6. If the absolute value of m-2+(n+1) is 0, then (m+n) is 2010+2n is 2009=
- 7. B two grain depot original coexistence rice 320 tons, later from A grain depot out 40 tons, to B warehouse into 20 tons, at this time A inventory of rice is 2 times of B warehouse, two grain depot original storage of rice how many tons? B two grain depot original coexistence rice 320 tons, later from A grain depot out of 40 tons, to B warehouse into 20 tons, at this time A inventory of rice is 2 times of B warehouse, two grain depot original storage of rice how many tons?
- 8. Count the mathematical significance of each day according to the records of the quantity of rice in and out of the grain depot in the table below. One, two, three, four, five. Storage volume (ton)+12-7-8+10-6 (1) Monday is ______ (2) Tuesday is ______ (3) Wednesday is ______ (4) Thursday is ______ (5) Friday is ______. Count out the mathematical significance of recording each day according to the record of the quantity of rice in and out of the grain depot in the table below. One, two, three, four, five. Storage volume (ton)+12-7-8+10-6 (1) Monday is ______ (2) Tuesday is ______ (3) Wednesday is ______ (4) Thursday is ______ (5) Friday is ______.
- 9. 12÷4=3, Means that 12 is divided into 4 parts, each is 3.______(right or wrong).
- 10. A very simple question 1+2+3+4+5+6+7+8+... +98+99=? What's the formula? What is the formula for finding the number?
- 11. A positive offload is equal to a positive number plus a negative absolute value. Can you give me an example? What do you mean, absolute value, minus sign addition? Signed number. When using negative number as parameter to apply for memory, the system will ignore it. Positive offload is equal to positive plus negative absolute value. That is to remove the negative sign of the two numbers add! Can you give me an example? What do you mean, absolute value, minus sign addition? Signed number. When a negative number is used as a parameter to request memory, the system will ignore it.
- 12. If a, b are rational numbers, a <0,b>0, the absolute value of a > the absolute value of b, then the size relationship of a, b,-a,-b is () If a, b is a rational number, a <0,b>0, the absolute value of a > the absolute value of b, then the size relationship of a, b,-a,-b is ()
- 13. The absolute values of nonzero rational numbers a.b, a > b, a And talk about it.
- 14. Ab is a rational number, the absolute value of a is 0, try to compare the size of a and b
- 15. Two numbers are negative, but the absolute value of the problem is small, what is the conclusion
- 16. Two negative numbers,_______ with a high absolute value And the biggest negative integer is ___________ All non-negative integers with absolute value not greater than 3.15 are _________ A _______ with two negative numbers and a large absolute value And the biggest negative integer is ___________ All non-negative integers with absolute value not greater than 3.15 are _________
- 17. When a is a positive number (i.e., a >0), the absolute value of a equals () when a is a negative number (i.e., a <0), the absolute value of a equals () when a=0, the When a is a positive number (i.e., a >0), the absolute value of a equals () When a is negative (i.e., a <0), the absolute value of a equals () When a =0, the absolute value of a equals () When a is a positive number (i.e., a >0), the absolute value of a equals () when a is a negative number (i.e., a <0), the absolute value of a equals () when a=0, the When a is a positive number (i.e. a >0), the absolute value of a equals () When a is negative (i.e., a <0), the absolute value of a equals () When a =0, the absolute value of a equals ()
- 18. Rational number of solution:(2012 power of -1/5)*(2013 power of -5)+2=_____.
- 19. Remove absolute value, how to change the sign before absolute value Like -|-X-2|, do you want to change the front negative? What's going on in there?
- 20. Absolute value of positive,0, negative number What is their absolute value?