Quadratic Equations NDA

00:00 - Introduction to Quadratic Equations (NDA Previous Year Questions) 00:13 - Question 1: Finding the number of quadratic equations satisfying specific root relations 03:40 - Question 43: Roots as cot alpha and cot beta (Trigonometry-based quadratic) 04:38 - Question 8: Logarithmic equations and their relations 07:11 - Question 7: Evaluating logarithmic expressions (Base 5) 08:59 - Question 20: Finding q given root difference relation (alpha^2 - beta^2 = 16) 10:30 - Question 19: Relation for equal roots in a complex expression 12:38 - Question 18: Forming a quadratic equation whose roots are a and b 14:28 - Question 17: Finding m + n given root cube relations 17:07 - Question 45: Solving for k when roots differ by unity 19:51 - Question 34: Analyzing cubic roots of unity on a complex plane 21:50 - Question 26: Sum of absolute values of real roots 23:22 - Question 16: Trigonometric roots (sin theta, cos theta) and coefficient relations 25:05 - Question 8 (Part 2): Finding possible values of Q for non-zero roots 27:06 - Question 6: Solving for k given real roots of equal magnitude and opposite signs 30:10 - Question 1: Evaluating expressions using cube roots of unity (omega) 31:53 - Question 42: Root identity relations 33:43 - Question 43 (Part 2): Reciprocal roots and solving for k 34:10 - Question 9: Logarithmic series with factorials (log base n 2, 3, ... 100) 35:30 - Question 8 (Part 3): Condition for real roots (k less than equal 1) 36:14 - Question 2: Solving log equations with trigonometric bases (sin x, cos x) 36:59 - Question 14: Analyzing root signs (Positive coefficients p, q, r) 38:40 - Question 8 (Part 4): Solving modulus equations involving quadratic expressions 40:06 - Question 38: Analyzing real roots and discriminant conditions 43:42 - Question 37: Determining the number of real roots for specific quadratic forms 44:50 - Question 16 (Part 2): Condition for always having real roots 45:29 - Question 6 (Part 2): Harmonic progression (HP) relation of coefficients 47:35 - Question 49: Ratio of roots and discriminant relations (d1/d2) 52:29 - Question 44: Finding sec alpha * sec beta from root products 53:07 - Question 31: Logarithmic exponent solving (2^x = 10) 55:06 - Question 10: Finding greatest/least value of a quadratic expression 58:30 - Outro and Final Tips