Question

Упростите выражение 1,2cd^4:0,3cd^2​

Answer 1

$\frac{1,2cd^4}{0,3cd^2} =\frac{12cd^4}{3cd^2} =4c^{1-1} *d^{4-2}=4c^0*d^2=\\=4*1*d^2=4d^2$