Math, asked by sufiyantyagi1234, 10 months ago

Rationalise the denominator of 1/2-√5

Answers

Answered by ashokyeddula

1

=1/2_√5×2+√5/2+√5

=2+√5/[2-√5][2+√5]

=2+√5/2¶2-√5¶2

=2+√5/4-5

=2+√5/-1

=-2-√5

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