问题 填空题
已知函数f(x)满足:f(p+q)=f(p)•f(q),f(1)=2,则:
f(2)
f(1)
+
f(4)
f(3)
+
f(6)
f(5)
+
f(8)
f(7)
+…+
f(2014)
f(2013)
=______.
答案

∵函数f(x)满足f(p+q)=f(p)•f(q),

∴令q=1,则f(p+1)=f(p)f(1),

f(p+1)
f(p)
=f(1),

又∵f(1)=2,

f(p+1)
f(p)
=2,

f(2)
f(1)
=2,
f(4)
f(3)
=2
,…,
f(2014)
f(2013)
=2

f(2)
f(1)
+
f(4)
f(3)
+
f(6)
f(5)
+
f(8)
f(7)
+…+
f(2014)
f(2013)
=2+2+…+2=2×1007=2014,

∴:

f(2)
f(1)
+
f(4)
f(3)
+
f(6)
f(5)
+
f(8)
f(7)
+…+
f(2014)
f(2013)
=2014.

故答案为:2014.

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