Central Public School,Samastipur And Sadhana Devi Vidyapith, Samastipur [Student Practice]
Quadratic Equations : Contents
1. Standard form of a quad. Equations: ax^{2} + bx + c = 0 (a ≠ 0)2. Solution of the quadratic equations only real roots by
(a) Factorization (b) Completing the square (c) Quadratic formula
3. Relationship between
discriminant and nature of roots.
if D > 0 => Real & Distinct Roots if D = 0 => Real & Equal Roots if D < 0 => No Real Roots
4. Problems related to day
to day activities
Learning Objective: To learn
the following facts
1. A second degree Equation
of the form ax^{2} + bx + c = 0 where a, b, c are real numbers and a ≠
0 are called quadratic eqn.
2. If ax^{2} + bx +
c = 0 equivalent to (x – a) (x – b) = 0 then x = a and x = b is a solution.
3. If ax^{2} + bx +
c = 0 has a & b as roots of eqn then sum of roots = – b/a. Product of roots
= c/a.
4. (b^{2} – 4ac) is
called the discriminant of the eqn and
Key Term
1. Roots of an eqn. 2. Discriminant 3. Real & Non Real Roots
4.
Quadratic Formula
Practice PaperQ. Which constant should be added and subtracted to solve the quadratic equation 4x^{2}  Ö3x 5=0 by the method of completing the squares ?
Q. If the discriminant of the equation 6x^{2}bx+2=0 is 1, then the value of ‘b’ is :
^{}Q. Solve for x :
Q. Solve for x: [Ans: x=a ; or, x = b/2 ]
You may get full questions paper in PDF Quadratic Equations
10th Maths SA2 Chapter wise Test Papers

This blog post is very helpful for more study pls. Visit links given belowQuadratic Equations Circles Coordinate Geometry Arithmetic ProgressionsArea Related to Circles  Probability
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