( 8 + 2,5 ) : 2
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a: \(=\left(1.25\right)^{16}\cdot8^{16}\cdot8=8\)
b: \(=\left(2.5\right)^9\cdot4^9\cdot4^6=4^6\cdot10^9\)
a: \(=\left(1.25\right)^{16}\cdot8^{16}\cdot8=8\cdot10^{16}\)
b: \(=\left(\dfrac{5}{2}\right)^{13}\cdot4^{13}\cdot4^2=10^{13}\cdot4^2\)
c: \(=\left(0.25\right)^4\cdot8^4\cdot8^2=2^4\cdot8^2=64\cdot16=1024\)
d: \(=\left(\dfrac{1}{2}\right)^{15}\cdot2^{18}=2^3=8\)
e: \(=\left(\dfrac{1}{3}\cdot6\right)^7\cdot\left(\dfrac{1}{2}\right)^7\cdot\dfrac{1}{2}=2^7\cdot\left(\dfrac{1}{2}\right)^7\cdot\dfrac{1}{2}=\dfrac{1}{2}\)
\(419:\left(8\times8\times4,18+0,17\times2,5+2,09\times2\times36+0,23\times2,5\right)\)
\(=419:\left(64\times4,18+0,17\times2,5+4,18\times36+0,23\times2,5\right)\)
\(=419:\left[\left(64+36\right)\times4,18+\left(0,17+0,23\right)\times2,5\right]\)
\(=419:\left[100\times4,18+0,4\times2,5\right]\)
\(=419:\left[418+1\right]\)
\(=419:419\)
\(=1\)
\(=\dfrac{419}{64\cdot4.18+0,17\cdot2,5+2,09\cdot72+0,23\cdot2,5}\)
\(=\dfrac{419}{0,4\cdot2,5+64\cdot4,18+2,09\cdot72}\)
\(=\dfrac{419}{1+418}=1\)
(8 + 2,5) : 2
= 10,5 : 2
= 5,25
( 8 + 2,5 ) : 2 = 10,5 : 2 = 5,25
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