If x -1 is a root of equation x 2- Kx -5-0 then value of K isA- 4B- 6C- -6D- 5

230

You visited us 230 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard X

Mathematics

Quadratic Polynomial

If x =1 is a ...

Question

If x = 1 is a root of equation x² - Kx + 5 = 0 then value of K is

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

-6

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
6

Suggest Corrections

Similar questions

The least value of k which makes the roots of the equation

$x^{2} + 5 x + k = 0$ imaginary is

Q. Question 4
If

\frac{1}{2}

is a root of equation

x^{2} + k x - \frac{5}{4} = 0

, then the value of k is
(A) 2
(B) – 2
(C) 1/4
(D) 1/2

Q. If

\frac{1}{2}

is a root of the equation

x^{2} + k x - \frac{5}{4} = 0

, then the value of

k

Question 4
If $\frac{1}{2}$ is a root of equation $x^{2} + k x - \frac{5}{4} = 0$ , then the value of k is
$(A) 2$
$(B) - 2$
$(C) \frac{1}{4}$
$(D) \frac{1}{2}$

Q. The least value of k which makes the roots of the equation

x^{2} + 5 x + k = 0

imaginary is
(a) 4
(b) 5
(c) 6
(d) 7

Join BYJU'S Learning Program

If x = 1 is a root of equation x2 - Kx + 5 = 0 then value of K is

The correct option is B 6

If x = 1 is a root of equation x² - Kx + 5 = 0 then value of K is

The correct option is B
6