Question

If m ,n are zeroes x^2 -4x+1 then 1/m+1/n-mn

Answer 1

Answer:

3

Step-by-step explanation:

Formula used: for any quadratic equations of form ax^2+bx+c, sum of roots/zeroes is -b/a and product of roots/zeroes is c/a.

m+n=-(-4)/1= 4

m.n=1/1= 1

simplying 1/m + 1/n -mn

add first 2 terms

(m+n)/mn - mn (replace terms with above formula)

4/1 -1

3