Question

If a, ß are the roots of the equation x2 - 3x + k = 0,
then the value of k for which a = 2B is
यदि a और B समीकरण x2 - 3x + k = 0, तब k का मान बताएँ यदि
a = 2B -
(a) 2
(b) -3
(c) 3
(d) None of these​

Answer 1

Answer:

(a)

Step-by-step explanation:

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Answer 2

Answer:

a) 2

Step-by-step explanation:

$x^2 - 3x +k = 0\\x^2 - (S)x + P = 0\\\\here, S = \alpha + \beta\\and, P = \alpha.\beta$

$\alpha = 2\beta \\\alpha +\beta =3\alpha \\\\3=3\alpha \\\alpha = 1\\\beta = 2\alpha =2\\k=\alpha .\beta =2*1=2$