已知数列{a n }和{b n }的通项公式分别为a n =3n+6,b n =2n+7(n∈N*),将集合{x|x=a n ,n∈N*}∪{x|x=b n ,n∈N*}中的元素从小到大依次排列,构成数列c 1 ,c 2 ,c 3 ,…c n 。 (1)c 1 ,c 2 ,c 3 ,c n ; (2)求证:在数列{c n }中,但不在数列{b n }中的项恰为a 2 ,a 4 ,…a 2n ,…; (3)求数列{c n }的通项公式。
An increase in the European money supply causes the euro to appreciate against the dollar, but it does not disturb the U.S. money market equilibrium.
B.
An increase in the European money supply causes the euro to appreciate against the dollar, and it creates excess demand for dollars in the U.S. money market.
C.
An increase in the European money supply causes the euro to depreciate against the dollar, and it creates excess demand for dollars in the U.S. money market.
D.
An increase in the European money supply causes the euro to depreciate against the dollar, but it does not disturb the U.S. money market equilibrium.
E.
An increase in the European money supply causes the euro to depreciate against the dollar, and disturbing the U.S. money market equilibrium.