Find the value of k for which the polyno...

Find the value of k for which the polynomial `21 x ^(2) - 3 kx + 7` has real roots.

Text Solution

AI Generated Solution

Topper's Solved these Questions

SAMPLE PAPER 8
EDUCART PUBLICATION|Exercise PART-A (SECTION-II)|20 Videos
SAMPLE PAPER 8
EDUCART PUBLICATION|Exercise PART-B (SECTION-III)|9 Videos
SAMPLE PAPER 8
EDUCART PUBLICATION|Exercise SECTION-C|10 Videos
SAMPLE PAPER 7
EDUCART PUBLICATION|Exercise PART - B (SECTION - V) |8 Videos
SAMPLE PAPER 9
EDUCART PUBLICATION|Exercise SECTION C|10 Videos

Similar Questions

Explore conceptually related problems

What is the value of k for which the quadratic equation 3x^(2) - kx+ k = 0 has equal roots ?

Find the value of k for which the equation kx (x - 2) + 6 = 0 has equal roots.

Find the value of k for which the equation 2kx^(2)-40x+25=0 has equal roots.Also find the roots.

Find the values of k for which the equation x^(2)-4x+k=0 has distinct real roots.

Find the least positive value of k for which the equation x^(2)+kx+4=0 has real roots.

Find the values of k for which the quadratic equation 9x^(2)-3kx+k=0 has equal roots.

Find the values of k for which the equation x^(2)+5kx+16=0 has no real roots.

Determine the value of k for which the quadratic equation 4x^(2)-3kx+1=0 has equal roots :

Find the value of k for the equation 2x^(2) + kx + 2 = 0 , if it has equal roots.

Find the value of k for which the equation x^(2)-2(1+3k)x+7(3+2k)=0 has two equal roots, which are real.

EDUCART PUBLICATION-SAMPLE PAPER 8-PART-A (SECTION-I)

What is the HCF of 40 and 54 ?
Text Solution
|
Find the value of k for which the polynomial 21 x ^(2) - 3 kx + 7 has ...
Text Solution
|
If the value of 'x' in the equation 2x + 3y = 13 is 2, then find the c...
Text Solution
|
Find the ratio in which x-axis divides the join of points (2, -3) and ...
Text Solution
|
The coordinates of the point P dividing the line segment joining the p...
Text Solution
|
If Delta ABC ~ Delta DEF and AB = DE, BC = 8 cm, then the value of EF...
Text Solution
|
ABC is a right triangle, right angled at C and AB = sqrt2 BC. Then, fi...
Text Solution
|
The ratio fo the height of a tower and the length of its shadow is sqr...
Text Solution
|
Find the value of &nbspsec ^(2)45 ^(@) cos 45 ^(@)-"cosec"^(2) 30^(@)...
Text Solution
|
Find the 10^(t h)term of the AP : 2, 7, 12, . . .
Text Solution
|
Find the sum of the first 10 multiples of 2.
Text Solution
|
Write a quadratic polynomial whose zero are 2 and -5.
Text Solution
|
The sum of the digits of a 2-digit number is 10. A number is selected ...
Text Solution
|
In a single throw of a die, what is the probability of getting a prime...
Text Solution
|
Find the median of the given data: 2, 4, 6, 12, 3, 5, 10, 8, 2, 4, ...
Text Solution
|
If theta is the angle (in degrees) of a sector of a circle of radius...
Text Solution
|
A cylindrical pencil sharpend at one edge is the combination of
Text Solution
|
If one zero of p (y) = 4y ^(2) - 8 ky - 9 is negative of other, then f...
Text Solution
|
Find the value of k if the given system of equations 5x + ky = - 7 and...
Text Solution
|
AT is a tangent to circle with centres such that OT = 4 cm and angle O...
Text Solution
|