If f ( x ) = cos [ π 2 ] x + cos [– π 2 ] x , where [ x ] stands for the greatest integer…
Mathematics · JEE Advanced · NTA Exams — Sets, Relations and Functions
If f (x) = cos [π2] x + cos [–π2]x, where [x] stands for the greatest integer function, then
- f (π) = 1
- f (–π) = 0
Answer
(D)
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