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( 62007 - 62006 ) : 62006
= 62007 : 62006 - 62006 : 62006
= 6 - 1
= 5.
(62007-62006):62006 = 62006(6 - 1) : 62006 = 5.62006 : 62006 = 5
\(\left(6^{2007}-6^{2006}\right):6^{2006}=6^{2007}:6^{2006}-6^{2006}:6^{2006}=6-1=5\)
(62007 - 62006) : 62006
= [62006.(6 - 1)] : 62006
= 6 - 1
= 5
( 62007 -62006 ) :62006=(62006.6-62006):62006=62006(6-1):62006=62006.5:62006=5
1/ \(\left(6^{2007}-6^{2006}\right):6^{2006}\)
\(=\dfrac{6^{2007}-6^{2006}}{6^{2006}}\)
\(=\dfrac{6^{2007}}{6^{2006}}-\dfrac{6^{2006}}{6^{20006}}\)
\(=6^1-1\)
\(=6-1\)
\(=5\)
2/ \(\left(11^{1009}+11^{1008}\right):11^{1008}\)
\(=\dfrac{11^{1009}+11^{1008}}{11^{1008}}\)
\(=\dfrac{11^{1009}}{11^{1008}}+\dfrac{11^{1008}}{11^{1008}}\)
\(=11^1+1\)
\(=11+1\)
\(=12\)
a,\(\left(6^{2007}-6^{2006}\right):6^{2006}\)
\(=\left(6^{2007}:6^{2006}\right)-\left(6^{2006}:6^{2006}\right)\)
\(=6^1-1\)
\(=5\)
b,\(\left(11^{1009}+11^{1008}\right):11^{1008}\)
\(=\left(11^{1009}:11^{1008}\right)+\left(11^{1008}:11^{1008}\right)\)
\(=11^1+1\)
\(=12\)
(62007-62006):62006=\(\frac{6^{2007}-6^{2006}}{6^{2006}}\)=62007
Các bài con lại làm tương tự!!!
\(\left(6^{2007}-6^{2006}\right):6^{2006}\)
\(=6^{2007}:6^{2006}-6^{2006}:6^{2006}\)
\(=6^{2007-2006}-1\)
\(=6^1-1\)
\(=6-1\)
\(=5\)
\(\left(7^3+7^5\right).\left(5^4+5^6\right).\left(3^3.3-9^2\right)\)
\(=\left(7^3+7^5\right).\left(5^4+5^6\right).\left(3^{3+1}-9^2\right)\)
\(=\left(7^3+7^5\right).\left(5^4+5^6\right).\left(3^4.9^2\right)\)
\(=\left(7^3+7^5\right).\left(5^4+5^6\right).\left[3^4-\left(3^2\right)^2\right]\)
\(=\left(7^3+7^5\right).\left(5^4+5^6\right).\left(3^4-3^4\right)\)
\(=\left(7^3+7^5\right).\left(5^4+5^6\right).0\)
\(=0\)
\(\left(6^{2007}-6^{2006}\right):6^{2006}\\ =6^{2007}:6^{2006}-6^{2006}:6^{2006}\\ =6^{2007-2006}-6^{2006-2006}\\ =6^1-6^0\\ =6-1=5\)
= 6 mũ 1 nhân với 1
=6
tick nho mình nhé