13. Rationalise the denominator in each of the following and hence evaluate by taking √2 = 1.414, √3 = 1.732 and √5 = 2.236 upto three places of decimal. (4) root 2 / 2 + root 2 √3 = 1.732 and √5 = 2.236 upto three places of decimal. (4) root 2 / 2 + [...]