enxisin325 enxisin325

21-03-2021
Mathematics

contestada

If alpha and beta are two roots of the equation 2x^2 +kx+1=0,
find the values of k.

Respuesta :

Amarokwolf Amarokwolf

21-03-2021

Answer:

αβ=c/a

α+β=-b/a

α+β=-k/2

-(α+β)²=k

-α²-2αβ-β²=k

-α²-2(1/2)-β²=k

-α²-1-β²=k

Step-by-step explanation:

Answer Link

Otras preguntas

Calculate the Social Security and Medicare tax that would be applied to an annual salary of $235,430.

a person who holds duties and responsibilities within a state is called a

What role did the Berlin airlift play in the Cold War? Select all that apply. It allowed the USSR to expand its influence across Germany. It brought the Allies

Which invention helped sailors in the 1400s to venture further from home

You can buy jars of olives in two sizes. Jar A: 800g for $12.40 Jar B: 500g for $8.20 Which jar is better value?

Oxygen (O) atoms have six valence electrons and beryllium (Be) atoms have two valence electrons. Which of the following is the correct formula for a compound ma

Two numbers have difference of 0.7 and a sum of 1. What are the numbers?

On a particular day, the wind added 4 miles per hour to Alfonso's rate when he was cycling with the wind and subtracted 4 miles per hour from his rate on his re

Where did the first Americans come from?

A grocer has two kinds of candies: one sells for 90 cents per pound and the other sells for 40 cents per pound. How many pounds of each kind must he use to make