Subject: Maths, asked on 24/5/18

## 12 th q:

Subject: Maths, asked on 24/5/18

## 8) ​the number of real roots of equation x(x+2) (x2-1)-1=0  are (A) 0                               (B) 4 (C) 3                                (D) 2

Subject: Maths, asked on 24/5/18

## 6th Q. If  are the roots of quadratic equation (x – 2) (x – 3) + (x – 3) + (x + 1) (x +1) (x – 2) = 0. then the value of $\frac{1}{\left(\mathrm{\alpha }+1\right)\left(\mathrm{\beta }+1\right)}+\frac{1}{\left(\mathrm{\alpha }-2\right)\left(\mathrm{\beta }-2\right)}+\frac{1}{\left(\mathrm{\alpha }–3\right)\left(\mathrm{\beta }–3\right)}$is      (A) 1                                                    (B) –1     (C) 0                                                    (D) 2

Subject: Maths, asked on 24/5/18

## 4 and 5 th

Subject: Maths, asked on 24/5/18

## 2th

Subject: Maths, asked on 24/5/18

## 2th 2.  The value(s) of a for which one of the roots of x2 + (2a + 1) x + (a2 + 2) = 0 is twice the other root is

Subject: Maths, asked on 24/5/18

## 11 th

Subject: Maths, asked on 24/5/18

## 13 th q

Subject: Maths, asked on 24/5/18

## 1st and 2nd Q1. Solve for x : 4.22x +1– 9.2x + 1 = 0. Q2. Solve for x : $\sqrt{\frac{x}{1-x}}+\sqrt{\frac{1-x}{x}}=2\frac{1}{6}$.

Subject: Maths, asked on 24/5/18

## 10th  10. Find the range of values of 'a' if the roots of the equation x2+a2=8x+6a are real.

Subject: Maths, asked on 24/5/18

## Q.7. Find the condition that one root of the equation $a{x}^{2}+bx+c=0$ may be double of the other.

Subject: Maths, asked on 24/5/18

## 30 th

Subject: Maths, asked on 24/5/18

## 7th

Subject: Maths, asked on 24/5/18

## Ist q

Subject: Maths, asked on 23/5/18

## 30 th  30.  Sachin and Rahul attempted to solve a quadratic equation. Sachin made a mistake in writing down the constant term and ended up in roots (4, 3). Rahul made a mistake in writing down coefficient of x to get roots (3, 2). Find correct roots of the equation.

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