Question

若a=（-4分之3）的-2次方,b=（-2分之π）的0次方,c=0.75的-1次方,则a,b,c三个数的大小关系是?

Answer 1

C.a＞c＞b

a=(-3/4)^-2

=(-4/3)^2

=16/9

b=(-π/2)^0

=1

c=0.75^-1

=(3/4)^-1

=4/3

a>c