Ch-4 Revision (Part-3) Quadratic Equations Term-2 | Revision Series |CBSE class 10 |Term -2 Math

Find the sum to n terms of the series whose nth term is 3n^(2)+2n

Most important question class 10 chapter 4 Quadratic equation

Consider a sequence whose sum to n terms is given by the quadratic function Sn= 3(n^2) +5n. Then sum of the squares of the first 3 terms of the given series is

How many terms of the series 1+2+4+…. Has the sum 511 ?

Write whether the following statements are true or false. Justify your answers. (i) Every quadratic equation has exactly one root. (ii) Every quadratic equation has atleast one real root. (ii) Every quadratic equation has atleast two roots. (iv) Every quadratic equations atmost two roots. (v) If he coefficient of x^(2) and the constnat term of a quadratic equation have opposite sigh, then the quadratic equation has real roots. (vi) If the coefficient of x^(2) and the constant term have the same sign and if the coefficient of x term is zero, then the quadratic equation has no real roots.

A series has three numbers a, ar, and ar^2 . In the series, the first term is twice the second term. What is the ratio of the sum of the first two terms to the sum of the last two terms in the series?

Class 10 Exercise 10.2 Question 1 | CBSE Class 10 Ex -10.2 Q1 | NCERT | Class 10 Maths Chapter 10

Find the first four terms and the eleventh term of the series whose nth term is 4n-2

Sum to n terms the series whose nth terms is (1)/(4n^(2)-1)

Find the nth term and the sum to n terms of the series 1.2+ 2.3 +3.4 + ...