Part of trail hiked by Juliana =
Part of trail hiked by Brody =
We have to calculate that how part did they hike.
Total part of the trail hiked by Juliana and Brody is calculated by adding the part of trail hiked by them individually.
So, total distance traveled
= +
=
LCM of 3 and 6 is 6.
So, Juliana and Brody traveled far.
Answer:
(E) I, II and III
Step-by-step explanation:
Given,
[email protected] = a + b - ab ∀ a, b ∈ Z ( set of all integers ),
For solving this question we need to remember the following properties of integers:
I. [email protected] = a + b - ab,
[email protected] = b + a - ba = a + b - ab
Thus, [email protected] = [email protected]
II. [email protected] = a + 0 - a × 0
= a + 0 - 0
= a
III. ([email protected])@c = ([email protected])+c - ([email protected])c
= (a + b - ab) + c - (a + b - ab)c
= a + b - ab + c - ac - bc + abc
= a + b + c - ab - bc - ac + abc,
Now, [email protected]([email protected]) = [email protected]( b + c - bc )
= a + (b + c - bc) - a(b+c - bc)
= a + b + c - bc - ab - ac + abc
= a + b + c - ab - bc - ac + abc.
Thus, ([email protected])@c = [email protected]([email protected])
the answer should be b but its the answer