Răspuns:
[(-1supra2)la puterea minus 2 ×3 la puterea minus 2 +0,(6)] la puterea minus 1 ×10=
=[(-1/2)⁻² × 3⁻² + [0,(6)]⁻¹ × 10
=[(-1/1/2)²×1/3²+(1/6/9)¹] × 10
=[(-2)²×1/9+9/6] × 10
=(4×1/9+3/2) × 10
=(4/9+3/2) × 10
=(8+27)/18 × 10
=35/18 × 10
=35/9 × 5
=35×5/9
=175/9
=19,(4)
