Răspuns:
Explicație pas cu pas:
b) [(5¹³ : 5¹¹) + 2³·3] : 7 = [(5¹³⁻¹¹)+8·3] : 7 =
= (5²+24):7 = (25+24) : 7 = 49:7 = 7
c) [(5²)⁸·5⁴:5³+(3⁸)²:3³·3⁴] : (5¹⁷+1¹⁰⁰+3¹⁷-100⁰) =
= [(5²ˣ⁸)·5⁴:5³+3⁸ˣ²:3³·3⁴] : (5¹⁷+1+3¹⁷-1) =
= (5¹⁶·5⁴:5³ + 3¹⁶:3³·3⁴) : (5¹⁷+3¹⁷) =
= (5¹⁶⁺⁴⁻³ + 3¹⁶⁻³⁺⁴) : (5¹⁷+3¹⁷) =
= (5¹⁷+3¹⁷):(5¹⁷+3¹⁷) = 1
