Chapter 4 – Quadratic Equations
Write whether the following statements are true or false. Justify your answer.
06
Dec
Write whether the following statements are true or false. Justify your answer. Write whether the following statements are true or false. Justify your answer. December 6, 2020 Category: Chapter 4 - Quadratic Equations , Exercise 4.2 , Maths , NCERT Class 10 ,
A train travels at a certain average speed for a distance of 63 km and then travels a distance of 72 km at an average speed of 6 km/hr more than its original speed. If it takes 3 hours to complete the total journey, what is its original average speed ?
23
Nov
A train travels at a certain average speed for a distance of 63 km and then travels a distance of 72 km at an average speed of 6 km/hr more than its original speed. If it takes 3 hours to complete the total journey, what is its original average speed ? Which of the following [...]
Had Ajita scored 10 more marks in her mathematics test out of 30 marks, 9 times these marks would have been the square of her actual marks. How many marks did she get in the test?
23
Nov
Had Ajita scored 10 more marks in her mathematics test out of 30 marks, 9 times these marks would have been the square of her actual marks. How many marks did she get in the test? 9 times these marks would have been the square of her actual marks. How many marks did she get [...]
Check whether the equation 6x^2 – 7x + 2 = 0 has real roots, and if it has, find them by the method of completing the squares.
23
Nov
Check whether the equation 6x^2 – 7x + 2 = 0 has real roots, and if it has, find them by the method of completing the squares. and if it has Check whether the equation 6x^2 – 7x + 2 = 0 has real roots find them by the method of completing the squares. November [...]
Find the roots of 6x^2– √2x – 2 = 0 by the factorisation of the corresponding quadratic polynomial.
23
Nov
Find the roots of 6x^2– √2x – 2 = 0 by the factorisation of the corresponding quadratic polynomial. Find the roots of 6x^2– √2x – 2 = 0 by the factorisation of the corresponding quadratic polynomial. November 23, 2020 Category: Chapter 4 - Quadratic Equations , Maths , NCERT Class 10 ,
Find the nature of roots for the quadratic equation. 2x^2 – root5x – 2 = 0 using the quadratic formula.
23
Nov
Find the nature of roots for the quadratic equation. 2x^2 – root5x – 2 = 0 using the quadratic formula. Find the nature of roots for the quadratic equation. 2x^2 - root5x - 2 = 0 using the quadratic formula. November 23, 2020 Category: Chapter 4 - Quadratic Equations , Maths , NCERT Class 10 [...]
Is the following statement true or false, justify the answer. If in a quadratic equation, the coefficient of x is zero, then the quadratic equation has no real roots.
23
Nov
Is the following statement true or false, justify the answer. If in a quadratic equation, the coefficient of x is zero, then the quadratic equation has no real roots. Is the following statement true or false justify the answer. If in a quadratic equation the coefficient of x is zero then the quadratic equation has [...]
Does (x-1)² + 2(x+1)=0 have a real root. Justify your answer.
23
Nov
Does (x-1)² + 2(x+1)=0 have a real root. Justify your answer. Does (x-1)² + 2(x+1)=0 have a real root. Justify your answer. November 23, 2020 Category: Chapter 4 - Quadratic Equations , Maths , NCERT Class 10 ,
Which constant should be added and subtracted to solve the quadratic equation 4x^2 − root 3x − 5=0 by the method of completing the square?
23
Nov
Which constant should be added and subtracted to solve the quadratic equation 4x^2 − root 3x − 5=0 by the method of completing the square? Which constant should be added and subtracted to solve the quadratic equation 4x^2 − root 3x − 5=0 by the method of completing the square? November 23, 2020 Category: Chapter [...]
Which of the following is not a quadratic equation ?
23
Nov
Which of the following is not a quadratic equation ? Which of the following is not a quadratic equation ? November 23, 2020 Category: Chapter 4 - Quadratic Equations , Maths , NCERT Class 10 ,