For which value(s) of x will the rational expression below be undefined?
check all that apply.
(x-5)(x+2)/x+1

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0

1) what is the measure of the exterior angle, ∠uvw ? 2) in triangle man, what is the measure of the exterior angle at n (in degrees)?