Topics/Questions discussed in this video: 00:00:05 Introduction to area of circle and perimeter(circumference) of circle NCERT Solutions Exercise 12.1 00:02:42 Question 1 The radii of two circles are 19 cm and 9 cm respectively. Find the radius of the circle which has...
Topics/Questions discussed in this video: 00:00:40 Derivation for Quadratic formula 00:23:00 NCERT Exercise 4.3 Question 3 Find the roots of the following equations: (i) x - frac{1}{x} = 3,,,x ne 0 (ii) frac{1}{{x + 4}} - frac{1}{{x - 7}} = frac{{11}}{{30}},,,x ne -...