Evaluate each of the following:(i) 23−35
(ii) −47−2(−3)
(iii) 47−(−5)(−7)
(iv) −21−59
Rationalise the denominators of each of the following:
(i) 3√5
(ii) 32√5
(iii) 1√12
(iv) √2√5
(v) √3+1√2
(vi) √2+√5√3
(vii) 3√2√5