Question

V. Calculaţi: 8 3 a) d) (i) (;) (-3) (-3) (4) b) 11 ° e) °) (19). 2. Calculați:​

Answer 1

Răspuns:

Explicație pas cu pas:

a) (8/11)² = (8x8)/(11x11) = 64/121

b) (3/4)³ = (3x3x3)/(4x4x4) = 27/64

c) (-2/3)⁴ = [(-2)x(-2)x(-2)x(-2)]/(3x3x3x3) = 16/81

d) (-5/6)³ = (-5)x(-5)x(-5)/(6x6x6) = -125/216

e) (1 si 6/7)² = [(1x7+6)/7]² = (13/7)² = (13x13)/(7x7) = 169/49

a) 2,3² = (23/10)² = (23x23)/(10x10) = 529/100 = 5,29

b) (-0,5)³ = (-5/10)³ = (-1/2)³ = (-1)x(-1)x(-1)/(2x2x2) = -1/8 = -0,125

c) = (-2,1)⁴ = (-21/10)⁴ = (-21)x(-21)x(-21)x(-21)/(10x10x10x10) =

= 441x441/(100x100) = 194481/10000 = 19,4481