Question

3.squarerooy2×squareroot5

Answer 1

Hey mate! here's your answer!
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Q)$3 \sqrt{2} \times \sqrt{5}$

Sol :

when we multiply an irrational number with other irrational number, then the result is also irrational.

also,

√a × √b = √(a×b) = √ab

so,

3√2 × √5

= 3√(2×5)

= 3√10 ....answer.

hope you understood!