Arg z + Arg ¯¯¯z(¯¯¯z∉R−)
0
π
π/2
None
Basic concept z¯¯¯z=|z|2soArgz+Arg¯¯¯z=Argz¯¯¯z=Arg|z|2=0
On which of the following intervals is the function f given by f(x)=x100+sinx−1 strictly decreasing. a) (0,1)
b) (π2,π)
c) (0,π2) d) None of these