Question

X^2+3x+5 के शून्यक a,b हो,तब a/b+b/a बराबर है

Answer 1

Answer:

= -1/5

Step-by-step explanation:

➡Given here

x²+3x +5 =0......(1)

[ if a and b are zeros of (1). ]

so,

✏sum of zeros

(a+b)= -3........(2)

✏product of zeros

(ab) = 5.......(3)

Now,

a/b + b/a

= (a²+b²)/ab

=[ (a+b)²-2ab]/ab

= [(-3)²-2×5]/5

= (9-10)/5

= -1/5

➡Hopes its helps you.