Math, asked by sonia28066, 8 months ago

rationalise 1/(18+3√5)

Answers

Answered by tennetiraj86

3

Answer:

answer for the given problem is given

Attachments:

Answered by deve11

1

Step-by-step explanation:

1/(18+3√5)*(18-3√5)/(18-3√5)

=18-3√5/(18)²-(3√5)²

=18-3√5/324-45

=18-3√5/279

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