Matematica C3 – Algebra 1 - itis magistri cumacini

www.matematicamente.it - Matematica C 3 – Algebra 1 – 6. Algebra di 1° grado200 Rappresenta graficamente l'insieme delle soluzioni delle seguenti disequazionix – 20 x50 x – 40 x – 5≥0 x3≤0 x0 x≥0 −1≤ x 3 xTrova l'Insieme Soluzione delle seguenti disequazioni201 3 – x x I.S.= {x 3 2} 2 x3 I.S.= { x 3 2}202 3x≤ 4 I.S.= {x≤ 4 3} 5x≥−4 I.S.= { x≥− 4 5}203 x 2 x 4 100 I.S.=R x 2 x 4 1000 I.S.=∅204 – x30 I.S.={ x3} – x−3≤0 I.S.={ x≥−3}205 32 x≥3 x2 I.S.={ x≤1 } 5 x – 4 ≥6 x – 4 I.S.={ x≤0}206 −3 x2≥−x−8 I.S.={ x≤5 } 4 x4≥2 2 x8 I.S.=∅207 4 x4≥2 2 x1 I.S.=R 4 x4≥2 2 x2 I.S.=R208 4 x422 x3 I.S.=∅ 4 x422 x2 I.S.=∅209 4 x42 2 x2 I.S.=∅ x 2 43 I.S.=R210 x 2 3−1 I.S.=∅ 4 x4≥3 x 4 3 I.S.={ x≥0}211 −3 x0 I.S.={ x0} −3 x≤0 I.S.={ x≥0}212 −3 x5≥0 I.S.= {x≤ 5 3}−3x−8≥0 I.S.= {x≤− 8 3}213 −3 x−8≥2 I.S.={ x≤−10 3 }− 4 3 x≥1 { I.S.= x≤− 3 4}214 − 4 3 x≥0 I.S.={ x≤0} − 4 3 x≥ 2 3215 − 2 3 x≤ 1 9216 x52 −1 5217 x 1 x32 3218 x3 2 ≥ x−2 x2 I.S.={ x≥−13 6 }I.S.={ x≤− 1 2}2 }I.S.={ 6} x≥−1 − 2 3 { x≤9 I.S.= 27x≥−x− 27152 − x 2 2≤ −5 x−32 I.S.=R4−1 I.S.= {x− 3 4} x532 x−1 ≤x4333I.S.=R2 x 1 4 5 2 3 x− 1 2I.S.={ x 3 2}219 1−2 x−4 2 −x⋅4 x12 I.S.={ x1 } x1 2 ≥ x−1 2 I.S.={ x≥0}220 3 2 ⋅x1− 1 ⋅1− x x23I.S.={ x ∈R | x1 }=−∞ ,1221 x0,25 1,750,25 x2I.S.={ x 13 2 }222 1 2 3x− 1 3 − 1 3 1x1−x3 1 3 x−1 223 3 x1 − x12 3 − 1 9 −5x 1 2224 x 2 −1 1 x 2 x−1 2 x−1x 5x−64 42≥0I.S.=RI.S.= {x−111}10I.S.=∅225 12 2 x−1 1 x−3 3 1 x− 1x1 23 32I.S.=R312