Question

IF a and b are the zeroes o
of the polynomial f(x) = 5x²-7x+1, find the
value of(1/a+1/b)
​

Answer 1

Answer:

(1/a) + (1/b) = (a+b)/(ab)

a+b is the sum of roots = -b/a = -(-7)/5 = 7/5

ab is the product of the roots = c/a = 1/5

(a+b)/(ab) = (7/5)÷(1/5) = 7

I hope it helps you!!