find a and b, if root 2+root 3 by 3 root 2-2 root 3=a+b root 6
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Answered by
14
here typing mistake , I think
question is
(√2 + √3)/( 3√2 -2√3) = a -b√6
( √2 + √3)( 3√2 + 2√3)/{ (3√2)² - (2√3)² }
(6 + 3√6 + 2√6 + 6 )/( 18 - 12)
(12 + 5√6)/6
2 +( 5/12)√6 = a - b√6
so, a = 2 and b = - 5/12
Answered by
5
after rationalisation
(root2+root3)(root3+root2)/(root3-root2 )(root3+root2)
= (root3+root2)^2
= 3+2 +2root6
= 5+3root6
after comparing
a =5 and b =3
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