Only 3 questions! Please help, this is TIMED!


1. The period of 2 sin x cos x is

A. 4 π 2

B. 2 π

C. 4 π

D. π


2. If f(x) is an odd function, then | f(x) | is

A. an odd function

B. an even function

C. neither odd nor even

D. even and odd


3. Brainly keeps giving me questions from years ago to answer in the live feed area, like 2017, 2016, and 2015. Why is that? Am I the only one?