Assuming that ex ea, sin x sin a, and cos x cos a as x a for any aR, evaluate the

Assuming that ex †’ ea, sin x †’ sin a, and cos x †’ cos a as x †’ a for any aˆŠR, evaluate the following limits when they exist.
a)

b)

c)

d)

e)

f.

r324 5x2 +3x2 lim e +2x-1 sin(x + /2) lim 1- cosx lim