Question

simplify y^a-b×y^b-6 /y^c-a

Answer 1

I think there is y^b-c. instead of b-6
${y}^{a - b} \times {y}^{b - c} \times {y}^{c - a} \\ = {y}^{a - b + b - c + c - a} \\ = {y}^{0} \\ = 1$