Examine whether the following numbers are rational or irrational:
(i)
, (ii) (3-
)(3+
), (iii)
(i) (3 +
)
= 9 + 2 + 6
= 11 +6
, which is irrational.
(ii) (3-
)(3+
) = (3)
- (
)
= 9 - 3 = 6 , which is rational.
(iii)
=
×
=
=
, which is irrational.
= 9 + 2 + 6(ii) (3-
)(3+
) = (3)
- (
)
= 9 - 3 = 6 , which is rational.(iii)
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