Advertisements
Advertisements
प्रश्न
If the sum of the zeros of the quadratic polynomial `kx^2-3x + 5` is 1 write the value of k..
Advertisements
उत्तर
By using the relationship between the zeroes of the quadratic polynomial.
We have
Sum of zeroes= `(-("Coefficient of x"))/(("Coefficient of" x^2))`
`⇒ 1=-(-3)/k`
`⇒k=3`
APPEARS IN
संबंधित प्रश्न
The graphs of y = p(x) are given in following figure, for some polynomials p(x). Find the number of zeroes of p(x).

The graphs of y = p(x) are given in following figure, for some polynomials p(x). Find the number of zeroes of p(x).

Find the zeroes of the polynomial `f(x) = x^2 ˗ 2x ˗ 8` and verify the relation between its zeroes and coefficients
Find the zeroes of the quadratic polynomial `f(x) = x^2 + 3x ˗ 10` and verify the relation between its zeroes and coefficients.
If one zero of the quadratic polynomial `kx^2 + 3x + k is 2`, then find the value of k.
If the sum of the zeros of the quadratic polynomial `kx^2-3x + 5` is 1 write the value of k..
Find the value of k such that the polynomial x2-(k +6)x+ 2(2k - 1) has some of its zeros equal to half of their product.
If one of the zeroes of the cubic polynomial x3 + ax2 + bx + c is -1, then the product of the
other two zeroes is ______.
10. The zeroes of the quadratic polynomial x² + kx + k, k? 0.
If x3 + 1 is divided by x2 + 5, then the possible degree of quotient is ______.
If one of the zeroes of the cubic polynomial x3 + px² + qx + r is -1, then the product of the other two zeroes is ______.
A polynomial of degree n has ______.
The number of polynomials having zeroes as -2 and 5 is ______.
If the graph of a polynomial intersects the x-axis at only one point, it cannot be a quadratic polynomial.
If the graph of a polynomial intersects the x-axis at exactly two points, it need not be a quadratic polynomial.
The zeroes of the quadratic polynomial x2 + kx + k, k ≠ 0 ______.
Which of the following is not the graph of a quadratic polynomial?
The graph of y = f(x) is shown in the figure for some polynomial f(x).

The number of zeroes of f(x) is ______.
