📘 Class 10 – Maths
Q. What is quadratic equation?
Ans: An equation of degree two.
Q. What is discriminant?
Ans: Value under the square root in quadratic formula.
Q. What is arithmetic progression?
Ans: Sequence with constant difference.
Q. What is trigonometry?
Ans: Study of relationship between sides and angles.
Q. What is circle?
Ans: Set of points equidistant from a center.
Q. What is quadratic equation?
Ans: Equation of degree 2.
Q. Quadratic formula?
Ans: x = (-b ± √(b²−4ac)) / 2a
Q. Distance formula?
Ans: √[(x₂−x₁)²+(y₂−y₁)²]
Q. Midpoint formula?
Ans: ((x₁+x₂)/2 , (y₁+y₂)/2)
Q. Area of circle?
Ans: πr²
Q. Circumference of circle?
Ans: 2πr
Q. What is AP?
Ans: Arithmetic Progression
Q. nth term of AP?
Ans: a+(n−1)d
Q. Probability range?
Ans: 0 to 1