1.

f:R rarr [-1, oo) and f(x)= ln([|sin 2 x | + | cos 2 x | ])( where [.] is the greatest integer function ) Then,

Answer»

`f(x)` has range Z
`f(x)` is PERIODIC with FUNDAMENTAL PERIOD `pi/4`
`f(x)` is invertible in `[0, pi/4]`
`f(x)` is into function

Answer :B::D


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