a) A⁻¹ = ½ * [[1, 1], [1, -1]]
b) A⁻¹ = ⅓ * [[-3, -2], [3, 3]]
c) A⁻¹ = [[0, -1, 1], [-1, 0, 1], [1, 1, -1]]
d) A⁻¹ = [[1, -2, 7], [0, 1, -2], [0, 0, 1]]
e) A⁻¹ = ⅑ * [[-10, -12, 5], [51, 54, -21], [-4, -3, 2]]
f) A⁻¹ = ⅛ * [[-4, -8, 26, 14], [2, 8, -19, -9], [10, 16, -63, -29], [-2, 0, 15, 5]]
g) A⁻¹ = [[-5, 2], [3, -1]]
h) A⁻¹ = ⅐ * [[-4, 9], [3, -5]]
i) A⁻¹ = [[0, -2, 1], [-4, 5, -2], [5, -3, 1]]
j) A⁻¹ = ⅛ * [[-6, -4, 13], [4, 0, -2], [2, 4, -7]]
k) A⁻¹ = ⅕ * [[14, -5, -5], [-19, 10, 5], [20, -10, -5]]
l) A⁻¹ = ¼ * [[1, 1, 1, 1], [1, 1, -1, -1], [1, -1, 1, -1], [1, -1, -1, 1]]
m) A⁻¹ = ½ * [[3, 1], [-4, -2]]
n) A⁻¹ = ½ * [[4, -2], [-3, 1]]
o) A⁻¹ = [[1, -1, 1], [-38, 41, -34], [27, -29, 24]]
p) A⁻¹ = ¹/₃₅ * [[17, -31, -46], [-6, 13, 8], [-1, 8, 13]]
r) A⁻¹ = ¹/₁₀ * [[50, -110, -140], [-5, 10, 10], [-13, 30, 40]]
s) A⁻¹ = [[5, -2, -5, 4], [-7, 3, 16, -13], [0, 0, 5, -4], [0, 0, -11, 9]]
Parent Tip: Review the logic above to help your child master the concept of matrix inverse worksheet.
