Răspuns:
Explicație pas cu pas:
a = ⁶(√2-√3)/5 + ¹⁵(√3-√5)/2 + ¹⁰(√5-√2)/3 =>
a = (6√2-6√3+15√3-15√5+10√5-10√2)/30 =>
a = (-4√2+9√3-5√5)/30
b = (√2)⁵ - (√3)⁵ + (√5)³ = 4√2 - 9√3 + 5√5
x = 30·a + b
x = 30·(-4√2+9√3-5√5)/30 + 4√2 - 9√3 + 5√5
x = -4√2+9√3-5√5+4√2-9√3+5√5 =>
x = 0
y = a : b =>
y = (-4√2+9√3-5√5)/30 : (4√2 - 9√3 + 5√5) = >
y = -1/30
#copaceibrainly
