napisz wzory do ciągu liczb : a) -2, -1, 0, 1, 2, 3 b)3, 6, 9, 12, 15 c)1/2, 2/3, 3/4, 5/6 d)1, 10, 100, 1000, 10 000

a) -2, -1, 0, 1, 2, 3 wzór: an= n-3 {a₁= 1-3= -2, a₂= 2-3= -1, a₃= 3-3= 0, a₄= 4-3= 1, a₅= 5-3= 2, a₆= 6-3= 3} b)3, 6, 9, 12, 15 wzór: an=3n a₁=3*1=3, a₂=3*2=6, a₃=3*3=9, a₄=3*4=12, a₅=3*5=15} c)½, ⅔, ¾, ⅘, ⅚ an= n/(n+1) a₁= ¹/(₁₊₁)= ½, a₂= ²/(₂₊₁)= ⅔, a₃= ³/(₃₊₁)= ¾, a₄= ⁴/(₄₊₁)= ⅘, a₅= ⁵/(₅₊₁)= ⅚ d)1, 10, 100, 1000, 10000 an= 10^(n-1) {10 do potęgi n-1} a₁ = 10¹⁻¹ = 10⁰ = 1 a₂ = 10²⁻¹ = 10¹ = 10 a₃ = 10³⁻¹ = 10² = 100 a₄ = 10⁴⁻¹ = 10³ = 1000 a₅ = 10⁵⁻¹ = 10⁴= 10000