329 = (25)9 = 245 < 252 = (24)13=1613<1813
=> (-32)9 > (-18)13
329 = (25)9 = 245 < 252 = (24)13=1613<1813
=> (-32)9 > (-18)13
so sánh:
\(127^{23}và513^{18}\)
\(\left(\frac{1}{243}\right)^9và\left(\frac{1}{83}\right)^{13}\)
\(Sosánh:\left(-32\right)^{27}và\left(-18\right)^{39}\)
so sánh
a)\(\left(\frac{1}{2}\right)^{27}và\left(\frac{1}{3}\right)^{18}\) b)\(\frac{-53}{78}và\frac{-57}{87}\)
So sánh
\(a,\left(-5\right)^{30}\&\left(-3\right)^{50}\)
\(b,\left(\frac{1}{16}\right)^{10}\&\left(\frac{1}{2}\right)^{50}\)
so sánh
\(\left(\frac{1}{222}\right)^{333};\left(\frac{1}{333}\right)^{222}\)
So sánh
\(\left(\frac{1}{2}\right)^{200};\left(\frac{1}{3}\right)^{200}\)
Cho \(A=\left(\frac{1}{2^2}-1\right)\left(\frac{1}{3^2}-1\right)\left(\frac{1}{4^2}-1\right)......\left(\frac{1}{100^2}-1\right)\)
Hãy so sánh A với 1/2
So sánh \(\left(\frac{-1}{3}\right)^{100}\)và\(\left(\frac{-1}{9}\right)^{48}\)
so sánh
a) \(12^8và8^{12}\)
b)\(\left(-5\right)^{39}và\left(-2\right)^{91}\)