bonjour
A = ( 2 x 5 ²) ³ / 2 x 25 ³
A = 2 ³ x 5 ⁶/ 2 x ( 5 ²) ³
A = 2 ³ x 5 ⁶/ 2 x 5 ⁶
A = 2 ³ / 2
A = 2 ²
A = 5 /2 + 2 /3
A = 15/6 + 4/6 = 19 /6
inverse = 6/19
2/3 ( x - 4/5) - 3 x /4 + 1/5
2 x /3 - 8/15 - 3 x /4 + 1 /5
= 40 x /60 - 32/60 - 45 x /60 + 12/60
= - 5 x /60 - 20 /60
= - x /12 - 1/3
