Question

simplify (2^-1+3^-1+4^-1)×12/13
.
.
.
.
.


FIND THE PRODUCT -

1) (5 root3-3 root5) (5 root3+3 root5)
2) (4 - 3 root6) (2 - 6 root3)
.
.
.
solve all questions. to get brainliest.

Answer 1

=[(1/2)+(1/3)+(1/4)]12/13
=[(6+4+3)/12]12/13
=[13/12]12/13
=1


1)(5√3-3√5)(5√3+3√5)
Applying (a+b)(a-b) =a^2-b^2 formula
(5√3)^2-(3√5)^2
=25(3)-9(5)
=75-45
=30

2)