Question

nhờ m.n cái ạ : m... là mũ mấy đó ạ

B1 : a) (0,25)m3 . 32

b) (-0,125)m3 . 80m4

c) 8m2 .4m5 / 27m10 .9m15

d) 8m2 . 4m5 / 2m20

e) (3/5)m2009 : ( 9/25)m1000

Answer 1

a: \(=\dfrac{1}{4^3}\cdot32=\dfrac{1}{64}\cdot32=\dfrac{1}{2}\)

b: \(=-\dfrac{1}{64}\cdot80^4=-\dfrac{1}{64}\cdot512000=-8000\)

c: \(=\dfrac{2^6\cdot2^{10}}{3^{30}\cdot3^{30}}=\dfrac{2^{16}}{3^{60}}\)

d: \(=\dfrac{2^6\cdot2^{10}}{2^{20}}=\dfrac{1}{2^4}=\dfrac{1}{16}\)

e: \(=\left(\dfrac{3}{5}\right)^{2009}:\left(\dfrac{3}{5}\right)^{2000}=\left(\dfrac{3}{5}\right)^9\)