(a) – r; (b) - p; (c) - q; (d) - s
(a) – r; (b) - q; (c) - s; (d) - p
(a) – p; (b) - r; (c) - s; (d) - q
Column - 1 Column - II(a)N2O(p)Brown coloured gas(b)NO2(q)Blue coloured liquid at 243K(c)N2O3(r)White crystalline solid(d)N2O5(s)Colourless gas, produces hysterical laughter when inhaled
Factorize (a2−b2)(c2−d2)−4abcd
Factorise 2(ab+cd)−a2−b2+c2+d2
Let ABCD be a quadrilateral with diagonals AC and BD. Prove the following statements (Compare these with the previous problem);
(a) AB + BC + CD > AD;
(b) AB + BC + CD + DA > 2AC;
(c) AB + BC + CD + DA > 2BD;
(d) AB + BC + CD + DA > AC + BD.