1)For rationalising the denominator of the expression 1/root 12 we multiply and divide by..

2)the value of 1/root 10 when root 10 =3.162 is...

3) 30/root 20-root 5 is equal is...

1.112For rationalising the denominator, we will multiply and divide by 12.112 = 112×1212 = 1212 = 2312 = 362.110On rationalising the denomianator, we get110 = 110×1010 = 1010 = 3.16210 = 0.3162so,110 = 0.3162

3.3020 - 5=302×2×5 - 5=3025 - 5=305=305×55=3055=65

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