Question

calculati X=30×a+b si y=a:b unde:​

Answer 1

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

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