Объяснение:
5⁻¹=1/5¹ 3⁻¹=1/3¹
1/5*25+1/3*9=5+3=8
2⁻²=1/2²=1/4 3⁻²=1/3²=1/9
1/2²*8-1/3²*27=1/4*8-1/9*27=2-3=-1
Объяснение:
5⁻¹=1/5¹ 3⁻¹=1/3¹
1/5*25+1/3*9=5+3=8
2⁻²=1/2²=1/4 3⁻²=1/3²=1/9
1/2²*8-1/3²*27=1/4*8-1/9*27=2-3=-1
5⁻¹=1/5¹ 3⁻¹=1/3¹
1/5*25+1/3*9=5+3=8
2⁻²=1/2²=1/4 3⁻²=1/3²=1/9
1/2²*8-1/3²*27=1/4*8-1/9*27=2-3=-1