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设a=(sin17°+cos17°),b=2cos213°-1,c=,则
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A.c<a<b B.b<c<a C.a<b<c D.b<a<c
设a=(sin17°+cos17°),b=2cos213°-1,c=,则
c<a<b
b<c<a
a<b<c
b<a<c
A.a<b<c
B.b<a<c
C.b<c<a
D.c<a<b
A.c<a<b
B.b<c<a
C.a<b<c
D.b<a<c