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For invertible f and g, the inverse of g∘f equals
Af∘g
Bf⁻¹∘g⁻¹
Cg∘f
Dg⁻¹∘f⁻¹
Answer & Solution
Correct answer: B. f⁻¹∘g⁻¹
To undo f followed by g, undo g first and then f, which reverses the order.
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