Question

If alpha,beta are the roots of x square -7x+10=0 then 1/alpha+1/beta=​

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:

x²-7x+10,    a = 1, b = -7, c =10

α+β = -b/a =  -(-7)/1 = 7

αβ=  c/a= 10/1= 10

1/α + 1/β= β + α /αβ--------(taking LCM)

           = α+β/αβ

substituting the values of α+β and αβ, we get

                 = 7/10

1/α + 1/β = 0.7