हल करना (9 ^ - 1 - 10 ^ - 1) / (45 ^ - 1) | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$(9^{-1}-10^{-1})\div45^{-1}$$