The person sitting next to me was very sensitive.
The formula for the nth term is
a1 + (n-1)d where a1 = first term and d = common difference
In a right triangle with 45 degree angles the two sides are the same length. The hypotenuse is the length of the sides x sqrt(2)
The length of x = 3 and y = 3
I believe it’s true not 100% sure
