Question

[(-1supra2)la puterea minus 2 ×3 la puterea minus 2 +0,(6)] la puterea minus 1 ×10=​

Answer 1

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)