Question

rationalise the denominator (I) 1/√7 (ii) 1/ √7-√6(iii) 1/√5+√2(iv)1/√7-2(v) 1/1+√2+√3 (vi)3/√3-√2+√5(vii)4/3+√5-2√2(viii)1/√3-√2+2(ix)√6+√7-√13​

Answer 1

explain and activity to justify the feather and coin experiment​