Test Academy | Which of the following is the formula for cofactor of an element aij ? Aᵢⱼ=(1ᶦ⁺ʲ Mᵢⱼ, Aᵢⱼ=(-2)ᶦ⁺ʲMᵢⱼ, Aᵢⱼ=(-1)ᶦ⁺ʲ Mᵢⱼ, Aᵢⱼ=(-1)ᶦ⁻ʲ Mᵢⱼ

Question

Which of the following is the formula for cofactor of an element aij ?

Options :

Aᵢⱼ=(1ᶦ⁺ʲ Mᵢⱼ
Aᵢⱼ=(-2)ᶦ⁺ʲMᵢⱼ
Aᵢⱼ=(-1)ᶦ⁺ʲ Mᵢⱼ
Aᵢⱼ=(-1)ᶦ⁻ʲ Mᵢⱼ

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