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Vì\(\left(\frac{1}{16}\right)^{10}\)= \(\left[\left(\frac{1}{2}\right)^4\right]^{10}\)= \(\left(\frac{1}{2}\right)^{40}\)
Mà 40<50 =>\(\left(\frac{1}{2}\right)^{40}\)< \(\left(\frac{1}{2}\right)^{50}\)hay \(\left(\frac{1}{16}\right)^{10}\)< \(\left(\frac{1}{2}\right)^{50}\)
Vậy \(\left(\frac{1}{16}\right)^{10}\)<\(\left(\frac{1}{2}\right)^{50}\)
Học giỏi!^^ (đúng thì k cho mik nhé,cảm ơn!)
\(\left(\frac{1}{2}\right)^{50}=\left(\left(\frac{1}{2}\right)^5\right)^{10}=\left(\frac{1}{32}\right)^{10}\)
Ta có\(\frac{1}{16}>\frac{1}{32}\)nên\(\left(\frac{1}{16}\right)^{10}>\left(\frac{1}{32}\right)^{10}\)hay\(\left(\frac{1}{16}\right)^{10}>\left(\frac{1}{2}\right)^{50}\)
4^32=16^16
mà 16^16>16^15
suy ra 4^32>16^15
GTNN của A =2 khi x =3
Ta có:
\(VT:\frac{4^{15}}{7^{30}}=\frac{\left(2^2\right)^{15}}{7^{30}}=\frac{2^{30}}{7^{30}}\)
\(VP:\frac{8^{10}\cdot3^{30}}{7^{30}.4^{15}}=\frac{\left(2^3\right)^{10}.3^{30}}{7^{30}.\left(2^2\right)^{15}}=\frac{2^{30}.3^{30}}{7^{30}.2^{30}}=\frac{3^{30}}{7^{30}}\)
Ta thấy :\(\frac{2^{30}}{7^{30}}vs\frac{3^{30}}{7^{30}}\)có:
\(\orbr{\begin{cases}2^{30}< 3^{30}\\7^{30}=7^{30}\end{cases}\Rightarrow\frac{2^{30}}{7^{30}}< \frac{3^{30}}{7^{30}}\Leftrightarrow\frac{4^{15}}{7^{30}}< \frac{8^{10}.3^{30}}{7^{30}.4^{15}}}\)
Chúc bn hok tốt
\(2^{24}=(2^3)^8=8^8\)
\(3^{16}=\left(3^2\right)^8=9^8\)
vì \(8^8< 9^8\Rightarrow2^{24}< 3^{16}\)
\(2^{24}=\left(2^3\right)^8=8^8\)
\(3^{16}=\left(3^2\right)^8=9^8\)
\(8< 9\)
\(\Rightarrow8^9< 9^9\)
\(\Rightarrow2^{24}< 3^{16}\)
a/ \(3^{600}=\left(3^3\right)^{200}=\left(27\right)^{200}\)
\(4^{400}=\left(4^2\right)^{200}=\left(16\right)^{200}\)
\(\Leftrightarrow3^{600}>4^{400}\)
b/ \(4^{32}\)
\(16^{15}=\left(4^2\right)^{15}=4^{30}\)
\(\Leftrightarrow4^{32}>16^{15}\)
a)\(3^{600}\) = \(\left(3^3\right)^{200}\) = \(27^{200}\)
\(4^{400}\) = \(\left(4^2\right)^{200}\) = \(16^{200}\)
Vì \(27>16\Rightarrow27^{200}>16^{200}=3^{600}>4^{400}\)
Vậy\(3^{600}>4^{400}\)
b) \(32^{10}=\left(2^5\right)^{10}=2^{50}
\)
\(16^{15}=\left(2^4\right)^{15}=2^{60}\)
Vì \(50< 60\Rightarrow2^{50}< 2^{60}\Rightarrow32^{10}< 16^{15}\)
Vậy\(32^{10}< 16^{15}\)
Ta có :
\(16^{15}=\left(4^2\right)^{15}=4^{30}\); \(4^{32}\)
Vì \(4^{30}< 4^{32}\)
=> \(16^{15}< 4^{32}\)
k mik nha