Question

A)15/4
B)-15/4
C)4
D)15
Please say the optionfast

Answer 1

Answer:

f(x)=X²-X-4

=> X= {-(-1)±√(1+16)}/2

=>X=(1±√17)/2

Step-by-step explanation:

α=(1+√17)/2 ,β=(1-√17)/2

Now,

1/α+1/β = 2/(1+√17)+2/(1-√17)

= 2(1-√17+1+√17)//(1-17)

= 4/-16

= -1/4

Noe of the above is correct answer