Răspuns:
Explicație pas cu pas:
a)
4⁰ + 4³ + 0 + 100 + (5⁰)²⁵ =
= 1 + 64 + 100 + 1²⁵=
= 165 + 1 =
= 166
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b)
( 9 x-14)/139 -> fractie echiunitara: numaratorul = numitorul
9 x - 14 = 139
9 x = 139 + 14
9 x = 153
x = 153 : 9 => x = 17
Verific: (9x17-14)/139 = 139/139 -> fractie echiunitara
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c)
(24x+112)/136 -> fractie subunitara: numaratorul< numitorul
24 x + 112 < 136
24 x < 136 - 112
24 x < 24
x < 1
- daca x ∈ N ⇒ x ={0}
- daca x ∈ R ⇒ x ∈ ( - ∞; 1)
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d)
( 14x-3)/193 → fractie supraunitara: numaratorul> numitorul
14 x - 3 > 193
14 x > 193 + 3
x > 196 : 14
x > 14 ⇒ x ∈ ( 14; + ∞)
