For the recurrence below, use the tree expansion method to find a guess of what it could solve to. Make your guess as tight as possible (look for the correct bound you can find). T(1) = a, T(n) = 3T(n/3) + bn for n ≥ 2 (where a and b are constants)

lol we need to see what the question is asking about

step-by-step explanation:

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)