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Find a and b if both a and b are rational.`(sqrt(2) +sqrt(3))/(3sqrt(2) - 2sqrt(3))=a-bsqrt(6)` |
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Answer» `(sqrt2+sqrt3)/(3sqrt2-2sqrt3)` `=(sqrt2+sqrt3)/((sqrt2sqrt3)(sqrt3+sqrt2))` `=((sqrt2+sqrt3)sqrt6(sqrt3+sqrt2))/(sqrt6(sqrt3-sqrt2)sqrt6(sqrt3+sqrt2)` `=((sqrt3+sqrt2)^2sqrt6)/(sqrt6((sqrt3)^2-(sqrt2)^2)` `=(3+2+2sqrt6)/(6(3-2))` `=(5/6+(2sqrt6)/6)sqrt6` `=5/sqrt6+2` `=5/sqrt6+sqrt6/sqrt6 +2` `=5/6(sqrt6)+2` `=2+5/6(sqrt6)` `a=2` `b=-5/6` |
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