Question

rationalise the denominator 1/√5+√2and subtract it from √5-√2​

Answer 1

first we need to rationalise the denominator

1/root 5 plus root 2

multiply root 5 +root 2 in numerator and denominator both

so the answer is root 5 +root 2 /5-2=3

Answer 2

1/(√5+√2) for rationalizing we have divide and multiply with√5-√2

1/√5+√2(√5-√2/√5-√2)

√5-√2/5-2

(√5-√2/3)-(√5-√2)

(√5-√2-3√5+3√2)/3

2√2-2√5/3

2/3(√2-√5)