30/5√3-3√5

 

Asked by rameshjawale5093 | 10th Mar, 2020, 10:09: PM

Expert Answer:

begin mathsize 16px style fraction numerator 30 over denominator 5 √ 3 minus 3 √ 5 end fraction
Rationalising space the space denominator comma
equals fraction numerator 30 over denominator 5 √ 3 minus 3 √ 5 end fraction cross times fraction numerator 5 √ 3 plus 3 √ 5 over denominator 5 √ 3 plus 3 √ 5 end fraction
equals fraction numerator 30 open parentheses 5 √ 3 plus 3 √ 5 close parentheses over denominator 75 minus 45 end fraction
equals 5 √ 3 plus 3 √ 5
end style

Answered by Yasmeen Khan | 11th Mar, 2020, 11:37: AM