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\(27^{2016}\)
\(7^4\)tận cùng là 1
2016 chia cho 4 dư 0
=> \(27^{2016}\)tận cùng là 1
\(A=27^{2016}=\left(27^4\right)^{^{504}}=531441^{504}=...1\\ \)
So, the last digit of A is 1
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2^2016=2^(4*504)=(2^4)^504=(......6)^504=(......6)
so the last digit of 2^2016 is 6
chú ý trên mỗi số(....6) có dấu gạch ngang trên đầu vì mình không biết ghi như thế nào mới ko gạch nếu bạn ghi voa fvowr nhớ gạch ngang trên đầu nhé
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\(2^{2016}=\left(2^4\right)^{504}16^{504}\)
The last digit of 22016 is 6
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Câu 1:
.810:8=89
Answer: The missing number is
Câu 2:
The fourth power of 3 is 81
Câu 3:
Find the number n such that 2016n=1.
Answer: không tồn tại
Câu 4:
What is the greatest remainder when a number divide by 9?
Answer: 8
Câu 5: không hiểu cho lắm , đề sao sao ấy , hỏi tuổi ai ?
Maria is 10 years old and her sister is 7 years old. In how many years' time will their total age be 41 years?
Answer: years.
Câu 6:
Anna is 1.53m tall. What is her height in centimeters?
Answer: 153 (cm)
Câu 7:
510x610= 3010
Câu 8:
Find the last digit of 22016.
Answer: The last digit of 22016 is 4
Câu 9:
Find the number n such that 58-2x3n=4.
Answer: n = 3
Fill in the blank with the suitable sign (>; =;<)
Câu 10:
Compare: 310 = 95
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Call a is the 3-digit number which divied by 57, the remainder is 27, divided by 217, the remainder is 60.
\(\Rightarrow\)a-27\(⋮\)57
\(\Rightarrow\)a-60\(⋮\)217
Because 684 is a multiple of 57 so:
\(\Rightarrow\)a-27-684\(⋮\)57\(\Rightarrow\)a-771\(⋮\)57
Because 651 is a multiple of 217 so:
\(\Rightarrow\)a-60-651\(⋮\)217\(\Rightarrow\)a-771\(⋮\)217
\(\Rightarrow\)a-771 \(\in\)CM(217;57)
\(\Rightarrow\)a-771\(\in\){0;12369;...}
\(\Rightarrow\)a\(\in\){771;13140;...}
Because a is a 3-digit number so a = 771.
The number is 771.
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câu 6 : 4 years
câu 5 : 48%
câu 2 : redundancy ( but where the divisor? )
Sorry...I'm not good at English....I only do this exercises....
for me please~!
Câu 1: 34 = 81
Câu 2: Số dư lớn nhất còn lại khi chia cho 9: 8
Câu 5: 42%
Câu 6: 12
272016 = (27504)4 = \(\overline{A1}\)
\(\Rightarrow\) The last digit of 272016 is 1.