﻿ If the harmonic mean between roots of   is 4 then b equals                                              : Kaysons Education

# If The Harmonic Mean Between Roots Of   is 4 Then b equals

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## Question

### Solution

Correct option is

Let α, β be the roots of (1), then

#### SIMILAR QUESTIONS

Q1

Let α, β be the roots of the equation x2 – ax + b = 0 and An = αn + βn

Q2

Let f (x) = ax2 + bx + cabc Ïµ R. if f (x) takes real values for real values of x and non – real values for non – real values of x, then.

Q3

If α, β, γ are such that α + β + γ = 2, α2 + β2 + γ2 = 6, α3 + β3 + γ3 = 8, then α4 + β4 + γ4 is

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Q6

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Q7

Let abc be non – zero real number such that

Then the quadratic equation ax2 + bx + c = 0 has

Q9

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Q10

In a triangle PQRR = π/4. If tan (P/3) and tan (Q/3) are the roots of the equation ax 2 + bx + c = 0, then