Question

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⏩ plzzz help...

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Answer 1

sqrt(10)+sqrt(3) rationalising factor is srtq(10)-sqrt(3)

7sqrt(3)(sqrt(10-sqrt(3))/7

=sqrt(3)(sqrt(10-sqrt(3))

=sqrt(30)-3

sqrt(6)+sqrt(5) ratinalising factor is sqrt(6)-sqrt(5)

2sqrt(5)(sqrt(6)-sqrt(5))/1

=2sqrt(30)-10

sqrt(15)+3sqrt(2) rationalising factor is sqrt(15)-3sqrt(2)

=3sqrt(2)(sqrt(15)-3sqrt(2))/(15-18)

=-3sqrt(2)(sqrt(15)-3sqrt(2))/3

=-sqrt(30)+2

sqrt(30)-3-2sqrt(30)+10+sqrt(30)-2

2sqrt(30)-2sqrt(30)+10-5

=5

Answer 2

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