第1个回答 2018-02-04
9.C 11.B 12.D 13.-6
18.(2)p=1/8,-4≦q≦4
20.(1)a=2,k=2 (2)min(y)=3,max(y)=7
21.(1)1,7 (2)5/14
22.(1)
f(x)=2sin(^2)x+2sinxcosx
=1-cos2x+sin2x
=√2sin(2x-π/4)+1
∴f(x)的增区间为(-π/8+kπ,3π/8+kπ),k∈Z
(2)f(max)=f(3π/8)=√2+1,f(min)=f(0)=0
其它应该没错了,以上,请采纳!