हल करना sqrt(7) * sqrt(21) . | 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

$$\sqrt { 7 } \times \sqrt { 21 }$$