Question

if one zero of the polynomial 2xsquare+5x+k is reciprocal of the other then the value of k is

Answer 1

10th

Maths

Quadratic Equations

Nature of Roots

If one root of 5x^{2}+13x+...

MATHS

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Asked on December 20, 2019 by

Minaxi Mohammed

If one root of 5x

2

+13x+k=0 is the reciprocal of the other root, then find value of k.

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ANSWER

Let one root of the given that other zero is Reciprocal the one zero.

So,

Other zero=1/Alpa.

Given polynomial is 5x

2

+13x+k=0.

Here,

A=coefficient of x

2

B=coefficient of x

And,C=constant term.

Product of zeroes =C/A

Alpha ×1/Alpha =K/5

1=K/5

K=5

Then,

We get k=5.

Answer 2

Answer:

k =5 watch his answers it's right .

sorry to spam .