1. (16/c)¹/³*(0,5c⁻²)²/¹⁵/(2c⁷)¹/⁵=2⁴/³*c⁻¹/³*2⁻²/¹⁵*c⁻⁴/¹⁵*2⁻¹/⁵*c⁻⁷/⁵=
=(2⁴/³*2⁻²/¹⁵*2⁻¹/⁵)*(c⁻¹/³*c⁻⁴/¹⁵*c⁻⁷/⁵=2¹*c⁻²=2/c².
2. ((3*d³/⁴))/∛(d¹/⁴*81*d⁻³/²))⁻⁶=(3*d³/⁴)⁻⁶/(∛(3⁴*d⁻⁵/⁴)⁻⁶=
=(3⁻⁶*d⁻⁹/²)/(3⁴*d⁻⁵/⁴)⁻²=(3⁻⁶*d⁻⁹/²)/(3⁻⁸*d⁵/²)=3²*d⁻⁷=3²/d⁷=9/d⁷.