1. If y (t) = f (t) is the solution of the following differential equation: y' = (1 ? y)(3 + y) with y(0) = ?2 , what is the value of y(1)? (A) 0.79; (B) 0.98; (C) ?0.32; (D) ?0.54; (E) ?1.01; (F) 0.32.

2. Determine the convergence interval of the following power series:

x +1) 1=1 (-3) V n