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Problems for Sections 10.3 and 10.4
1. Given that a, b, c, d, x, y, z, and w are positive real numbers, prove the following
[from (a) to (z)]:
(a) If x + y = 2, then
(b) If xyz = 1, then
(c) If xyz = 1, then
(d) If x + y + z = 1, then
(e)
(f)
(g)
(h)
(i)
(j)
(k)
(l)
(m)
(n)
(o)
(p)
(q)
(r)
(s)
(t) If x + y + z = 1, then
(u) If x + y + z = 1, then
(v)
(w) If x + y + z + w = 1, then
(x)
(y)
(z) If x + y = 1, then
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Monday, June 22, 1998