Date of submission: 5 Jan., 2015
1. A two digit number is such that the product of the digits is 14. When 45 is added to the number, then the digits interchange their places. Find the number.
2. Show that the product of the 2nd and 3rd terms of an A.P exceeds the product of the 1st and 4th by twice the square of the difference between the 1st and 2nd.
4. ∆ABC is a right triangle in which AB = 3.2 cm, BC = 3.2 cm, Angle B = 90˚. BD is perpendicular from B to AC. The circle Through BCD is drawn. Construct tangents from A to this circle.
5. Prepare and answer 5 questions from Quadratic Equations, Arithmetic Progressions, Circles and Constructions (Other exercise questions)