Question

if 'a = root 8 - 3/ root 8 + 3' and 'b= root 8+3/ root 8-3'
then what is a+b?​

Answer 1

Answer:

-34

Step-by-step explanation:

a=(√8-3)/(√8+3), b=(√8+3)/(√8-3)

a+b=[(√8-3)/(√8+3)]+[(√8+3)/(√8-3)]

=[(√8-3)^2+(√8+3)^2]/[(√8)^2-3^2]

=[8-6√8+9+8+6√8+9]/(8-9)

=(34)/(-1)

=-34