Find N such that
Answer: N =
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Find n such that n and n + 1 are factors of 40 Answer: n =
Find the number n such that: 58-2*3^n =4 . Answer:
58-2*3^n+4<=>2*3^n=54<=>3^n=27<=>n=3
hence:n=3
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In the figure below, x Câu 2 Find the measure of angle J if widehat{K}29^o K 29 o and angle J and K are supplementary. Answer: widehat{J} J ^o o . Câu 3 In the figure below, x Câu 4 In the figure below, x Câu 5 Solve: |2x-3|-43∣2x−3∣−43, where xx is a negative number. Answer: xx Câu 6 Calculate: 9+|-6|:1^2 9+∣−6∣:1 2 Câu 7 Compare: dfrac{36}{27} 27 36 dfrac{4}{3} 3 4 Câu 8 Find the negative number yy such that |y+dfrac{7}{2}|-dfrac{1}{2}4∣y+ 2 7 ∣− 2 1 4. Answer: yy Câu 9 Find xx su...
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In the figure below, x = Câu 2 Find the measure of angle J if \widehat{K}=29^o K =29 o and angle J and K are supplementary. Answer: \widehat{J}= J = ^o o . Câu 3 In the figure below, x = Câu 4 In the figure below, x = Câu 5 Solve: |2x-3|-4=3∣2x−3∣−4=3, where xx is a negative number. Answer: x=x= Câu 6 Calculate: 9+|-6|:1^2 =9+∣−6∣:1 2 = Câu 7 Compare: \dfrac{36}{27} 27 36 \dfrac{4}{3} 3 4 Câu 8 Find the negative number yy such that |y+\dfrac{7}{2}|-\dfrac{1}{2}=4∣y+ 2 7 ∣− 2 1 =4. Answer: y=y= Câu 9 Find xx such that \dfrac{32}{2^x}=2 2 x 32 =2. Answer: x=x= Câu 10 Find nn such that \dfrac{(-4)^n}{64}=-16 64 (−4) n =−16. Answer: n=n= Cần gấp nhé
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Find the sum A+B such that \(\frac{1}{n\left(n+2\right)}=\frac{A}{n+2}+\frac{B}{n}\)
Answer: A+B = ........
An+Bn+2B=1
(=)n(A+B)=1-2B
(=)A+B=1-2B/n
theo mik là thế thôi...
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Find the sum A+B such that \(\frac{1}{n\left(n+2\right)}=\frac{A}{n+2}+\frac{B}{n}\)
Answer: A+B = ........
\(\frac{1}{n\left(n+2\right)}=\frac{A}{n+2}+\frac{B}{n}\)
\(\frac{1}{n\left(n+2\right)}=\frac{An+B\left(n+2\right)}{n\left(n+2\right)}\)
\(\Rightarrow An+Bn+2B=1\)
\(A+B=\frac{1-2B}{n}\)
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Find the sum A+B such that \(\frac{1}{n\left(n+2\right)}=\frac{A}{n+2}+\frac{B}{n}\)
Answer: A+B = ........
\(\frac{1}{n\left(n+2\right)}=\frac{A}{n+2}+\frac{B}{n}\)
=> \(\frac{A}{n+2}+\frac{B}{n}\)
= \(\frac{n+n+2}{n\left(n+2\right)}\)
=\(\frac{2n+2}{n\left(n+2\right)}\)
=> 1 = 2n + 2
=> 1 = 2 ( n + 1 )
=> 0,5 = n + 1
=> 0,5 - 1
Bạn thự tính nha rồi thế vào => A + B = ? liền à
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Find the sum A+B such that \(\frac{1}{n\left(n+2\right)}=\frac{A}{n+2}+\frac{B}{n}\)
Answer: A+B = ........
Question 1:If then n: n Question 2:If then 0:p Question 3:If then n Question 4:Calculate: 427 – (127+120) Question 5:Find x such that 1014 : (124 – x) 13 Answer: x Question 6:Find x such that Answer: x Question 7:If x : 7 x : 6 then x Question 8:999 divided by 3 is the same as 9 times M. Find MAnswer: M Question 9:Find x such that Answer: x Question 10:When X divided by 234, the remainder is the greatest possible remainder and the quotient is 5.The value of X is
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Question 1:
If then n: n =
Question 2:
If then 0:p=
Question 3:
If then n =
Question 4:
Calculate: 427 – (127+120) =
Question 5:
Find x such that 1014 : (124 – x) =13
Answer: x =
Question 6:
Find x such that
Answer: x=
Question 7:
If x : 7 = x : 6 then x =
Question 8:
999 divided by 3 is the same as 9 times M. Find M
Answer: M =
Question 9:
Find x such that
Answer: x=
Question 10:
When X divided by 234, the remainder is the greatest possible remainder and the quotient is 5.
The value of X is
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Exam number 3Fill in the blank with the suitable numberQuestion 1:The sum of two numbers is 98 and their difference is 24. The greater number is Question 2:Fill missing number in the blank41165+2304223042+Question 3:Fill missing number in the blank (32514+16257)+23459+(16257+23459)Question 4:Calculate: 91625 – 27356 Question 5:If a square has one side’s length is 12cm then its perimeter is cmQuestion 6:If the perimeter of a square is 104m then its one side’s length is mQuestion 7:Find x such tha...
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Exam number 3
Fill in the blank with the suitable number
Question 1:
The sum of two numbers is 98 and their difference is 24. The greater number is
Question 2:
Fill missing number in the blank
41165+23042=23042+
Question 3:
Fill missing number in the blank
(32514+16257)+23459=+(16257+23459)
Question 4:
Calculate: 91625 – 27356=
Question 5:
If a square has one side’s length is 12cm then its perimeter is cm
Question 6:
If the perimeter of a square is 104m then its one side’s length is m
Question 7:
Find x such that x+24360=41256
Answer: x=
Question 8:
Find y such that y – 12358=18031
Answer: y=
Question 9:
Find the value of n such that
Answer: n=
Question 10:
Find the value of b such that
Answer: b=