Question

rationalise the denominator 1 \sqrt{a +b}

Answer 1

hey dear your answer is here
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1/√(a+b)

=1/√(a+b)×√(a-b)/√(a-b)

=√(a-b)/(a-b)

hope it helps

Answer 2

$\frac{1}{ \sqrt{a + b} } \\ \frac{1}{ \sqrt{a + b} } \times \frac{ \sqrt{a + b} }{ \sqrt{a + b} } \\ \frac{ \sqrt{a + b} }{ \sqrt{(a + b)^{2} } } \\ \frac{ \sqrt{a + b} }{a + b}$