Question

if alfa and beta are the zeroes of the polynomial py = 5y^2-7y +1 find the value of 1 upon alfa plus 1 upon beta

Answer 1

$hello \: mate$

➡5y²-7y+1=0

We know that,

Sum of the zeroes= -b/a= -(-7)/5=7/5

Product of the zeroes=c/a=1/5

So,

$\alpha + \beta =$

7/5

$\alpha \beta =$

1/5

Now,

↪1/alpha+1/beta

↪alpha+beta/alpha×beta

↪7/5/1/5

↪7=Answer