Question

$rationalise \: the \: denominator \: of \: \frac{1}{ \sqrt{2 } \: + \sqrt{3} \: + \sqrt{5} }$
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Answer 1

Answer:

2√3+3√3-√30/12=0.185793=185793×10^-6

Step-by-step explanation:

1/√2+√3+√5×√2+√3-√5/√2+√3-√5

√2+√3-√5/(√2+√3+√5)(√2+√3-√5)

√2+√3-√5/(√2+√3)^2-5

√2+√3-√5/2+2√6+3-5

√2+√3-√5/0+2√6

√2+√3-√5×√6/2√6×√6

√12+√18-√30/2×6

2√3+3√2-√30/12