Question

If alpha and beta are the zeroes of the x²-x-4, then find out the value of one upon alpha plus one upon beta minus alpha multiply by beta​

Answer 1

Answer:

15/4

Step-by-step explanation:

By applying relation between roots & coefficient of quadratic polynomial we get,

α+β= -b/a=1 ---------(i)

α×β=c/a=-4 ----------(ii)

=>1/α+1/β-α×β={α+β-(α×β)^2}/α×β=1-16/-4=15/4....