Chapter 4 – Quadratic Equations
Which of the following equations has 2 as a root? (A) x^2 – 4x + 5 = 0 (B) x^2 + 3x – 12 = 0 (C) 2x^2 – 7x + 6 = 0 (D) 3x^2 – 6x – 2 = 0
22
Nov
Which of the following equations has 2 as a root? (A) x^2 – 4x + 5 = 0 (B) x^2 + 3x – 12 = 0 (C) 2x^2 – 7x + 6 = 0 (D) 3x^2 – 6x – 2 = 0 Which of the following equations has 2 as a root? (A) x^2 – [...]
Which of the following is not a quadratic equation? (A) 2(x – 1 )^2 = 4x^2 – 2x + 1 (B) 2x – x^2 = x^2 + 5 (C) (√2x + √3)^2+ x^2= 3x^2 – 5x (D) (x^2 + 2x)^2 = x^4+ 3 + 4x^3
22
Nov
Which of the following is not a quadratic equation? (A) 2(x – 1 )^2 = 4x^2 – 2x + 1 (B) 2x – x^2 = x^2 + 5 (C) (√2x + √3)^2+ x^2= 3x^2 – 5x (D) (x^2 + 2x)^2 = x^4+ 3 + 4x^3 Which of the following is not a quadratic equation? (A) [...]
Which of the following is a quadratic equation? (A) x^2 + 2x + 1 = (4 – x)^2 + 3 (B) -2x^2 = (5 – x) (2x – 2/5 ) (C) (k+ 1)x^2 + 3/2 x = 7,where k = -1 (D) x^3 – x^2= (x – 1 )^3
22
Nov
Which of the following is a quadratic equation? (A) x^2 + 2x + 1 = (4 – x)^2 + 3 (B) -2x^2 = (5 – x) (2x – 2/5 ) (C) (k+ 1)x^2 + 3/2 x = 7,where k = -1 (D) x^3 – x^2= (x – 1 )^3 where k = -1 (D) x^3 [...]
Find the discriminant of the equation 3x^2 – 2x + 1/3 = 0 and hence find the nature of its roots. Find them, if they are real.
04
Oct
Find the discriminant of the equation 3x^2 – 2x + 1/3 = 0 and hence find the nature of its roots. Find them, if they are real. Find the discriminant of the equation 3x^2 – 2x + 1/3 = 0 and hence find the nature of its roots. Find them if they are real. October [...]
A Pole has to be erected at a point on the boundary of a circular park of diameter 13 meters in such a way that the differences of its distances from two diametrically opposite fixed gates A and B on the boundary is 7 meters. Is it possible to do so? If yes, at what distances from the two gates should the pole be erected?
04
Oct
A Pole has to be erected at a point on the boundary of a circular park of diameter 13 meters in such a way that the differences of its distances from two diametrically opposite fixed gates A and B on the boundary is 7 meters. Is it possible to do so? If yes, at what [...]
Find the discriminant of the quadratic equation 2x^2 – 4x + 3 = 0, and hence find the nature of its roots.
04
Oct
Find the discriminant of the quadratic equation 2x^2 – 4x + 3 = 0, and hence find the nature of its roots. and hence find the nature of its roots. Find the discriminant of the quadratic equation 2x^2 – 4x + 3 = 0 October 4, 2020 Category: Chapter 4 - Quadratic Equations , Maths [...]
A motor boat whose speed is 18 Km/h in still water takes 1 hour more to go 24 Km upstream than to return downstream to the same spot. Find the speed of the stream.
04
Oct
A motor boat whose speed is 18 Km/h in still water takes 1 hour more to go 24 Km upstream than to return downstream to the same spot. Find the speed of the stream. A motor boat whose speed is 18 Km/h in still water takes 1 hour more to go 24 Km upstream than [...]
Find the roots of the following equations : 1/x – 1/x – 2 = 3 x = 0,2
04
Oct
Find the roots of the following equations : 1/x – 1/x – 2 = 3 x = 0,2 2 Find the roots of the following equations : 1/x - 1/x - 2 = 3 x = 0 October 4, 2020 Category: Chapter 4 - Quadratic Equations , Maths , NCERT Class 10 ,
Find the roots of the following equations : x + x/1 = 3, x = 0
04
Oct
Find the roots of the following equations : x + x/1 = 3, x = 0 Find the roots of the following equations : x + x/1 = 3 x = 0 October 4, 2020 Category: Chapter 4 - Quadratic Equations , Maths , NCERT Class 10 ,
Find the roots of the following quadratic equations, if they exist, using the quadratic formula: 2x² – 2 √2 x + 1 = 0
04
Oct
Find the roots of the following quadratic equations, if they exist, using the quadratic formula: 2x² – 2 √2 x + 1 = 0 Find the roots of the following quadratic equations if they exist using the quadratic formula: 2x² – 2 √2 x + 1 = 0 October 4, 2020 Category: Chapter 4 - [...]