Question

help in 4 part plzzzzz.

Answer 1

Answer:

3

Step-by-step explanation:

Let a=√26-√17

b=√26+√17

so a*b=(√26-√17)(√26+√17)

=(√26)²-(√17)²   [ because (a-b)(a+b)=a²-b²]

=26-17

a*b=9

We know that mean proportion of a and b

=√a*b

=√9

=3