Question

3√3 * 3√5-3√5*√2-3√3*√7+√7*√2​

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important

Answer 1

ans. √14

exp: 3√3 × 3√5 - 3√5 × √2 - 3√3 × √7 +√7 × √2

= 3√5 - 3√5

= 0

= 3√3 × 0 × √2 - 3√3 × √7 + √7 × √2

=0 + √7 × √2

= √7×2

= √14

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