1. a.Predict the sum of the squares of the terms in the nth row of Pascal's triangle.

b.Predict the result of alternately adding and subtracting the squares of the terms in the nth row of pascal's triangle.

Ans: t2n,n

2. Find a relationship btw. entries in number of diagonals in an n-sided polygon.

Ans: n odd:0 n even (-1)^0.5tn,0.5n